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C&P Exam Prep: Renal Tuberculosis
DBQ Overview
Interview + Physical- Form Name
- kidney
- Form Code
- kidney
- Page Count
- 9
- Examiner Type
- Nephrologist or Urologist
- Estimated Duration
- 30-45 minutes
- Exam Format
- Interview + Physical
What to Expect During Your Exam
Exam Overview
To document the current severity of renal tuberculosis (DC 7505) and any residuals or complications, so VA can assign an accurate disability rating under 38 CFR 4.115b, rated by analogy to 38 CFR 4.88b (active tuberculosis) or 4.89 (inactive tuberculosis), whichever applies. The exam also captures whether the disease is active or inactive, any kidney functional impairment, structural damage, secondary infections, urinary complications, and treatment history.
What the examiner evaluates:
- Current disease status: active versus inactive tuberculosis of the kidney
- Degree of renal functional impairment (GFR, creatinine, BUN, urinalysis findings)
- Presence of residuals such as nephrocalcinosis, ureteral stricture, hydronephrosis, pyonephrosis, or renal scarring
- History and current status of anti-tuberculosis drug therapy (e.g., isoniazid, rifampin, pyrazinamide, ethambutol)
- Need for invasive or non-invasive procedures, catheter drainage, stent or nephrostomy tube placement
- History of nephrectomy or partial kidney removal due to tuberculosis
- Frequency and severity of urinary tract infections or recurrent infections attributable to renal TB
- Hospitalization history related to the condition
- Presence of continuous intensive management requirements
- Secondary complications including chronic pyelonephritis, papillary necrosis, ureteral stricture, or renal failure
- Functional impact on daily activities and employment
Exam is typically conducted in person at a VA medical center or contracted facility (QTC, LHI, VES). The examiner will review your claims file, conduct an interview about your symptom history, and may perform a focused physical examination. Bring all relevant outside medical records. In most states you have the right to record the exam - notify the examiner at the start. Telehealth exams may be authorized under certain circumstances; if conducted remotely, the examiner must document how the examination was performed.
Typical duration: 30-45 minutes
Serum Creatinine / eGFR (Estimated Glomerular Filtration Rate)
Kidney filtration capacity - the primary metric for staging chronic kidney disease (CKD) and determining renal dysfunction severity under 38 CFR 4.115a
What to expect:
Blood draw or review of recent lab results. The examiner will document your most recent eGFR value and note the CKD stage. Bring your most recent labs (within 6-12 months) to the exam.
Key thresholds:
- eGFR - 60 mL/min/1.73m- — Supports lower-tier renal dysfunction ratings; functional impairment may still be rated based on symptoms and treatment burden
- eGFR 30-59 mL/min/1.73m- — CKD Stage 3 - moderate impairment; may support 60% under renal dysfunction criteria
- eGFR 15-29 mL/min/1.73m- — CKD Stage 4 - severe impairment; supports higher ratings including 80%
- eGFR < 15 mL/min/1.73m- — CKD Stage 5 / End-Stage Renal Disease - supports 100% rating
- Dialysis dependent — 100% rating under renal dysfunction criteria
Tips:
- Bring printed lab results from the past 6-12 months to show trends over time
- If your eGFR fluctuates, bring results showing your worst recent readings
- Request your VA provider document the most recent creatinine and BUN values before your exam
Pain considerations: Not directly applicable - this is a laboratory value, not a pain-based measurement.
Urinalysis with Microscopy
Detects protein (proteinuria), blood (hematuria), white blood cell casts, RBC casts, granular casts, and pyuria - all markers of ongoing kidney inflammation and tubular or glomerular damage from renal TB
What to expect:
Urine sample collection. The examiner will review recent urinalysis results. Findings such as sterile pyuria are classic for renal TB. The DBQ specifically documents WBC casts, RBC casts, granular casts, and albuminuria/proteinuria.
Key thresholds:
- Albuminuria / ACR - 30 mg/g — Documented marker of kidney damage supporting renal dysfunction rating tiers
- Persistent hematuria or pyuria — Supports ongoing active or residual disease documentation
- WBC or RBC casts present — Indicates glomerulonephritis or interstitial nephritis as complication - critical DBQ findings
Tips:
- If you have had repeated urine tests showing abnormalities, bring those records
- Sterile pyuria (white cells in urine without bacterial growth) is a hallmark of renal TB - make sure this is in your records
- Report any episodes of visible blood in urine (gross hematuria) and when they occurred
Pain considerations: Hematuria and dysuria can cause significant discomfort - accurately describe burning, urgency, and pain with urination to the examiner.
BUN (Blood Urea Nitrogen)
Nitrogen waste product filtered by the kidneys; elevated BUN indicates reduced kidney filtration and is used alongside creatinine to assess renal dysfunction severity
What to expect:
Review of blood lab results. Bring recent labs. The examiner will note whether BUN is elevated and whether it contributes to uremic symptoms.
Key thresholds:
- BUN > 20 mg/dL with elevated creatinine — Supports documentation of renal impairment
- BUN > 60 mg/dL — Indicates severe uremia - supports higher disability ratings and need for intensive management
Tips:
- Note any symptoms of uremia: nausea, vomiting, fatigue, mental cloudiness, or decreased appetite
- Bring all recent metabolic panels to the exam
Pain considerations: Uremic symptoms such as nausea and fatigue significantly impact daily functioning - describe these in detail.
Imaging Review (CT, IVP, Ultrasound, X-Ray)
Structural damage to the kidneys and ureters: calcifications (nephrocalcinosis), scarring, hydronephrosis, ureteral stricture, autonephrectomy (calcified non-functional kidney), or abscess
What to expect:
The examiner will review available imaging studies. You should bring reports from CT urogram, intravenous pyelogram (IVP), renal ultrasound, or plain abdominal X-rays. These document structural sequelae of renal TB.
Key thresholds:
- Nephrocalcinosis present — Documented structural complication of renal TB - supports higher rating and secondary condition claims
- Ureteral stricture confirmed — Major complication requiring treatment; supports rating for obstruction and recurrent infections
- Hydronephrosis present — Indicates obstructive uropathy - supports higher severity rating
- Autonephrectomy / non-functioning kidney — Loss of kidney function - functionally equivalent to nephrectomy
Tips:
- Bring CDs or printed reports of all imaging studies
- If imaging shows a calcified or non-functioning kidney, ensure this is explicitly documented
- Ask your treating provider to write a note summarizing the imaging findings and their relationship to renal TB
Pain considerations: Hydronephrosis and ureteral stricture can cause flank pain and renal colic - describe the location, frequency, and severity of this pain accurately.
Urine Culture / AFB (Acid-Fast Bacilli) Culture
Confirms presence of Mycobacterium tuberculosis in the urine - the gold standard for diagnosing active renal TB; also documents recurrent bacterial superinfections
What to expect:
Review of prior culture results. The examiner will want to know when TB was last confirmed in cultures and whether there are any recent positive cultures indicating active disease.
Key thresholds:
- Positive AFB urine culture — Confirms active renal tuberculosis - triggers 100% rating for active TB period
- Negative AFB culture after treatment — Supports classification as inactive TB - rating then follows graduated schedule under 38 CFR 4.89
Tips:
- Bring documentation of all positive AFB cultures with dates
- Document the date treatment was completed and when cultures converted to negative
- If you never had formal AFB cultures but had imaging or biopsy confirmation, bring those records
Pain considerations: Not directly applicable - this is a microbiological test.
Rating Criteria Breakdown
| Rating % | Criteria | Key Symptoms |
|---|---|---|
| 100% | Active renal tuberculosis - rated 100% during the period of active disease under 38 CFR 4.88b. Following documented inactivity, the 100% rating is maintained for two years after the date of inactivity, then reduced. Also 100% for end-stage renal disease requiring dialysis or kidney transplant under renal dysfunction criteria (38 CFR 4.115a). |
CFR: Under 38 CFR 4.88b, active tuberculosis is rated 100%. DC 7505 directs rating under 4.88b (active) or 4.89 (inactive). Under renal dysfunction criteria, dialysis or kidney transplant = 100% for one year post-transplant, then rated on residual function. |
| 100% | Inactive renal tuberculosis - 100% for two years following the date of documented inactivity (under 38 CFR 4.89 graduated reduction schedule). Also 100% under renal dysfunction if eGFR < 15 or dialysis required. |
CFR: Per M21-1 examples, 100% is continued for two years after inactivity date, then reduced to 50% for four years, then rated based on residual lesions. Failure to submit to examination can affect rating continuity. |
| 80% | Renal dysfunction with eGFR 15-29 mL/min/1.73m- (CKD Stage 4) or persistent edema, hypertension, and significant proteinuria requiring continuous medication management as residuals of renal TB. |
CFR: Under renal dysfunction rating criteria referenced in 38 CFR 4.115a, severe functional impairment with eGFR 15-29 supports 80% rating. Rated by analogy when renal TB causes CKD Stage 4. |
| 60% | Renal dysfunction with eGFR 30-59 mL/min/1.73m- (CKD Stage 3) with persistent proteinuria, hypertension, and symptoms. Also applicable for inactive renal TB with significant structural residuals such as nephrocalcinosis, ureteral stricture requiring treatment, or recurrent urinary tract infections. |
CFR: Under renal dysfunction analogy for inactive renal TB with moderate CKD; also supported by residual complications such as ureteral stricture or nephrocalcinosis creating obstructive or infectious complications. |
| 30% | Inactive renal tuberculosis with residual structural damage but preserved or mildly impaired renal function. May also apply in the graduated reduction period (years 2-6 post-inactivity) under 38 CFR 4.89 schedule. Mild recurrent UTIs, nephrocalcinosis without obstruction, or controlled hypertension as sequelae. |
CFR: Under M21-1 graduated reduction: 50% for four years after two-year 100% period, then 30% based on residual lesions. For renal TB with minimal residuals and preserved function, 30% reflects ongoing disease burden. |
100% Active renal tuberculosis - rated 100% during the period of ...
Active renal tuberculosis - rated 100% during the period of active disease under 38 CFR 4.88b. Following documented inactivity, the 100% rating is maintained for two years after the date of inactivity, then reduced. Also 100% for end-stage renal disease requiring dialysis or kidney transplant under renal dysfunction criteria (38 CFR 4.115a).
Key Symptoms
- Active M. tuberculosis infection confirmed in urine culture or tissue biopsy
- Systemic TB symptoms: fever, night sweats, weight loss, fatigue
- Gross hematuria, flank pain, dysuria
- Renal failure or severe functional impairment requiring intensive management
- Dialysis dependence
- Status post kidney transplant
CFR: Under 38 CFR 4.88b, active tuberculosis is rated 100%. DC 7505 directs rating under 4.88b (active) or 4.89 (inactive). Under renal dysfunction criteria, dialysis or kidney transplant = 100% for one year post-transplant, then rated on residual function.
100% Inactive renal tuberculosis - 100% for two years following t ...
Inactive renal tuberculosis - 100% for two years following the date of documented inactivity (under 38 CFR 4.89 graduated reduction schedule). Also 100% under renal dysfunction if eGFR < 15 or dialysis required.
Key Symptoms
- Recent conversion from active to inactive status
- Continued treatment with anti-TB medications
- Significant residual renal impairment post-active disease
- Requirement for dialysis or transplant evaluation
CFR: Per M21-1 examples, 100% is continued for two years after inactivity date, then reduced to 50% for four years, then rated based on residual lesions. Failure to submit to examination can affect rating continuity.
80% Renal dysfunction with eGFR 15-29 mL/min/1.73m- (CKD Stage 4 ...
Renal dysfunction with eGFR 15-29 mL/min/1.73m- (CKD Stage 4) or persistent edema, hypertension, and significant proteinuria requiring continuous medication management as residuals of renal TB.
Key Symptoms
- Severe reduction in kidney filtration (eGFR 15-29)
- Persistent edema requiring diuretic therapy
- Refractory hypertension requiring multiple medications
- Uremic symptoms: nausea, fatigue, decreased appetite
- Proteinuria requiring treatment
- Requirement for nephrology follow-up and intensive medication management
CFR: Under renal dysfunction rating criteria referenced in 38 CFR 4.115a, severe functional impairment with eGFR 15-29 supports 80% rating. Rated by analogy when renal TB causes CKD Stage 4.
60% Renal dysfunction with eGFR 30-59 mL/min/1.73m- (CKD Stage 3 ...
Renal dysfunction with eGFR 30-59 mL/min/1.73m- (CKD Stage 3) with persistent proteinuria, hypertension, and symptoms. Also applicable for inactive renal TB with significant structural residuals such as nephrocalcinosis, ureteral stricture requiring treatment, or recurrent urinary tract infections.
Key Symptoms
- Moderate reduction in GFR (eGFR 30-59)
- Recurrent urinary tract infections requiring suppressive therapy
- Ureteral stricture confirmed on imaging
- Nephrocalcinosis on imaging
- Chronic flank pain
- Need for periodic stent placement or other urological procedures
- Proteinuria or hematuria on urinalysis
CFR: Under renal dysfunction analogy for inactive renal TB with moderate CKD; also supported by residual complications such as ureteral stricture or nephrocalcinosis creating obstructive or infectious complications.
30% Inactive renal tuberculosis with residual structural damage ...
Inactive renal tuberculosis with residual structural damage but preserved or mildly impaired renal function. May also apply in the graduated reduction period (years 2-6 post-inactivity) under 38 CFR 4.89 schedule. Mild recurrent UTIs, nephrocalcinosis without obstruction, or controlled hypertension as sequelae.
Key Symptoms
- Documented inactive renal TB status
- Mild residual renal scarring on imaging
- Well-controlled hypertension on single medication
- Occasional UTIs not requiring hospitalization
- Mild proteinuria
- Continued monitoring by nephrology or urology
CFR: Under M21-1 graduated reduction: 50% for four years after two-year 100% period, then 30% based on residual lesions. For renal TB with minimal residuals and preserved function, 30% reflects ongoing disease burden.
How to Describe Your Symptoms
Urinary Symptoms
How to describe:
Accurately describe the frequency, urgency, pain, and any visible blood in your urine. Note how often you experience dysuria (painful urination), nocturia (waking at night to urinate), urinary frequency, incomplete emptying, or episodes of gross hematuria. Quantify these: for example, 'I urinate 8-10 times per day and wake 3-4 times per night.'
Worst-day example:
“On my worst days, I experience burning pain with every urination, pass visible blood in my urine, and cannot sleep through the night due to urinary urgency. I may urinate every 30-45 minutes and experience sharp flank pain radiating to my groin.”
What the examiner listens for:
Frequency and severity of urinary complaints, presence of hematuria, history of recurrent UTIs including how many in the past year, whether infections required antibiotics or hospitalization, and any catheter use or stent procedures.
Understatements to avoid:
Do not say 'my urine issues are manageable' if you are urinating frequently, waking at night, or have had multiple UTIs. Report the actual number of infections and treatments over the past year.
Flank and Abdominal Pain
How to describe:
Describe the location (one or both sides of the back below the rib cage), character (dull ache, sharp, colicky), severity on a 0-10 scale, what makes it worse (physical activity, full bladder, certain positions), what makes it better, and how often it occurs. Note whether pain has ever caused you to miss work, limit activity, or seek emergency care.
Worst-day example:
“On my worst days, I have a sharp, stabbing pain in my left flank that rates 8 out of 10. The pain radiates down toward my groin and prevents me from standing upright. I cannot sit comfortably for more than 15 minutes and have gone to the emergency room on multiple occasions.”
What the examiner listens for:
Location and radiation pattern consistent with renal or ureteral involvement, severity that impacts activities of daily living, whether pain is associated with episodes of obstruction or infection, and how frequently pain episodes occur.
Understatements to avoid:
Do not minimize flank pain by saying 'it comes and goes' without describing how debilitating the episodes are. Report the worst episodes, not just your average day.
Systemic TB Symptoms (Fatigue, Night Sweats, Weight Loss)
How to describe:
If your renal TB is active or was recently active, describe constitutional symptoms accurately: unintentional weight loss (in pounds), frequency and severity of night sweats (do you soak through clothing or bedding?), and fatigue level. Rate fatigue on a scale and describe how it limits your daily activities.
Worst-day example:
“During active disease, I lost 18 pounds over three months without trying, woke up every night soaking through my shirt and sheets, and was so fatigued I could not get out of bed until noon. Even now, I experience severe fatigue that prevents me from working a full day.”
What the examiner listens for:
Evidence of constitutional symptoms consistent with active or recently active tuberculosis, documentation of weight loss with specific numbers, and how fatigue impacts occupational and social functioning.
Understatements to avoid:
Do not omit reporting fatigue simply because it feels 'normal' to you now. Chronic fatigue from renal TB and its treatment is a ratable symptom - describe its impact on your ability to work and function.
Medication Side Effects and Treatment Burden
How to describe:
Anti-tuberculosis medications (isoniazid, rifampin, pyrazinamide, ethambutol) have significant side effects. Accurately describe any liver toxicity symptoms (jaundice, nausea), peripheral neuropathy from isoniazid, visual changes from ethambutol, gastrointestinal intolerance, and the burden of long-term treatment on your daily life.
Worst-day example:
“My anti-TB medications cause daily nausea that makes it difficult to eat, numbness and tingling in my hands and feet from nerve damage caused by isoniazid, and I require monthly blood tests to monitor liver function. On bad days I cannot keep food down and have missed work due to medication side effects.”
What the examiner listens for:
Active medication regimen, documented side effects, whether additional medications are required to manage side effects (e.g., pyridoxine for neuropathy), and how treatment burden affects daily life.
Understatements to avoid:
Do not fail to mention medication side effects. The treatment burden of long-term anti-TB therapy is a compensable aspect of your disability - report all symptoms even if they are from the medications rather than the infection itself.
Functional Impact on Daily Life and Employment
How to describe:
Be specific about how renal TB affects your ability to work, perform household tasks, maintain relationships, and care for yourself. Use concrete examples: 'I cannot sit at a desk for more than two hours due to flank pain,' 'I must have immediate access to a restroom at all times due to urinary urgency,' 'I have missed X days of work in the past year.'
Worst-day example:
“On my worst days, I cannot leave the house because I need to be near a bathroom constantly. I have had accidents due to urinary urgency. My fatigue is so severe I cannot perform basic household tasks like cooking or cleaning. I have had to decline job opportunities because I cannot guarantee reliable attendance.”
What the examiner listens for:
Specific, concrete examples of functional limitations - not vague statements. The examiner must document how the condition affects occupational and daily activities for the DBQ functional impact section.
Understatements to avoid:
Do not say 'I manage okay' or 'I get by.' If you have made accommodations, lifestyle changes, or given up activities because of your condition, those changes represent functional impairment that must be reported.
Recurrent Infections and Hospitalizations
How to describe:
Report the exact number of UTIs, kidney infections, or TB-related hospitalizations in the past 12 months and over the course of your illness. Include dates, names of treating facilities, antibiotics or treatments used, and duration of hospitalization. Note whether you have been on suppressive antibiotic therapy.
Worst-day example:
“I have been hospitalized three times in the past two years for kidney infections related to my renal TB. Each hospitalization lasted four to seven days. I am currently on daily suppressive antibiotics to prevent recurrence and still have breakthrough infections approximately four times per year.”
What the examiner listens for:
Number and frequency of infections, hospitalizations, whether infections are recurrent and related to TB residuals such as ureteral stricture or obstruction, and whether suppressive therapy is required.
Understatements to avoid:
Do not estimate conservatively. Pull your actual medical records and report the documented number of infections and hospitalizations - underreporting this can significantly reduce your rating.
Common Mistakes to Avoid
Reporting only current 'good day' symptoms
VA rating criteria and M21-1 guidance support evaluation based on the full range of your condition, including worst days and fluctuating severity. Reporting only stable days understates your true disability level.
Instead: Describe your worst days accurately. Specifically explain how severe symptoms get during flare-ups, infection episodes, or periods of active disease. Use concrete numbers: days missed from work, hospitalizations, ER visits.
Impact: All rating levels - particularly impacts distinction between 30% and 60%+
Failing to connect renal TB to secondary complications
Renal TB frequently causes secondary conditions such as chronic pyelonephritis, ureteral stricture, nephrocalcinosis, hydronephrosis, and CKD. These residuals are separately ratable or increase the overall rating - but only if documented.
Instead: Before your exam, obtain all imaging reports, urology notes, and lab records documenting structural complications. Tell the examiner specifically about each complication and how it was treated.
Impact: 60%-100% ratings driven by residual complications
Not bringing medication records to the exam
The DBQ specifically asks about drug therapy, dates of use, and whether continuous intensive management is required. Medication burden is a key factor in rating severity. Without documentation, the examiner may understate treatment complexity.
Instead: Bring a complete, current medication list with start dates and dosages for all anti-TB medications, antibiotics, and any medications used to manage side effects or complications such as hypertension, neuropathy, or anemia.
Impact: 60%-100% - continuous intensive management supports higher ratings
Not clarifying the active vs. inactive status and its date
The date of documented inactivity triggers a specific graduated rating schedule under 38 CFR 4.89 and M21-1. If this date is unclear or undocumented, the VA may not apply the full graduated rating period correctly.
Instead: Bring all documentation confirming when TB was diagnosed as active and, if applicable, when it was declared inactive. This should include culture results with dates, physician notes, and treatment completion records.
Impact: 100% initial rating and 50% graduated reduction period
Failing to report urinary frequency, nocturia, or incontinence
These symptoms directly impact daily functioning and are captured in the DBQ voiding dysfunction section. Under-reporting them can result in the examiner marking these fields as absent or mild.
Instead: Keep a 48-72 hour urinary diary before your exam documenting how many times you urinate during the day and night, any episodes of urgency incontinence, and any pain or difficulty associated with voiding.
Impact: Affects functional impact documentation across all rating levels
Assuming the examiner has read your entire claims file
Examiners are busy and may not have thoroughly reviewed all records before the exam. Key evidence - positive AFB cultures, surgical records, imaging reports - may be missed.
Instead: Prepare a one-page summary of your key medical history: date of diagnosis, treatments received, hospitalizations, surgeries, and current medications. Hand this to the examiner at the start of the appointment.
Impact: All rating levels - foundational to the entire exam
Not reporting the impact of anti-TB medication side effects as separate symptoms
Side effects such as peripheral neuropathy from isoniazid, hepatotoxicity from rifampin, and visual disturbances from ethambutol are compensable as secondary conditions and must be documented.
Instead: Separately describe each medication side effect you experience, when it started, how severe it is, and how it affects your daily life. Ask your treating provider to document these in your medical records before the exam.
Impact: Secondary condition ratings and overall combined disability percentage
Prep Checklist
Before Your Exam
Day Of
During the Exam
After the Exam
Your Rights During a C&P Exam
- You have the right to request a copy of the completed DBQ after the examination through your VBMS access or by submitting VA Form 10-5345.
- You have the right to record your C&P examination in most states under one-party consent laws. Notify the examiner before beginning that you intend to record for your personal records.
- You have the right to submit a statement (VA Form 21-4138) or buddy statement correcting inaccurate information documented in the DBQ.
- You have the right to a new or supplemental examination if the original exam is found to be inadequate, incomplete, or conducted by an unqualified examiner.
- You have the right to bring a representative (VSO, attorney, claims agent) or support person to the examination, though they may not participate in the medical interview.
- You have the right to provide private medical opinions, nexus letters, or treating physician statements that the VA must consider alongside the C&P exam findings.
- Under the PACT Act and established tuberculosis presumptions, if your renal TB is related to service (including presumptive service connection), ensure this basis is clearly documented in your claim.
- You have the right to a fully reasoned rating decision that explains how the DBQ findings were applied to the rating criteria. If the decision does not adequately explain the rating, you may appeal to the Board of Veterans' Appeals.
- Under 38 CFR 4.89 (inactive tuberculosis), you are entitled to the graduated rating schedule: 100% for two years post-inactivity, then 50% for four years, then rated on residuals. Ensure this schedule is applied correctly in your rating decision.
- You have the right to file a claim for secondary conditions caused or aggravated by renal tuberculosis or its treatment, including peripheral neuropathy, chronic kidney disease, hypertension, and anemia.
Related Conditions
- Chronic Kidney Disease (Renal Dysfunction) Primary residual of renal tuberculosis. Mycobacterium tuberculosis infection destroys renal parenchyma, leading to scarring, reduced nephron mass, and progressive CKD. Rated under 38 CFR 4.115a when renal TB causes measurable GFR impairment.
- Ureteral Stricture Direct structural complication of renal TB. TB induced inflammation and fibrosis of the ureter causes stricture formation, leading to obstruction, hydronephrosis, and recurrent infections. Documented under DC 7505 residuals and the kidney nephrology DBQ.
- Hydronephrosis Secondary to ureteral stricture or obstruction caused by renal TB. Backpressure from urinary obstruction damages the kidney collecting system and accelerates renal function decline.
- Nephrocalcinosis A hallmark structural complication of renal TB in which calcium deposits form within the renal parenchyma due to caseating granulomas. Can lead to nephrolithiasis, obstruction, and CKD progression.
- Chronic Pyelonephritis Renal TB creates structural abnormalities (strictures, obstruction, reflux) that predispose to recurrent bacterial superinfections and chronic pyelonephritis. Ratable separately or as part of the renal TB residual picture.
- Hypertension (Renovascular) Renal scarring from TB can cause renovascular hypertension through activation of the renin angiotensin aldosterone system. If hypertension is caused or aggravated by renal TB, it may be service connected as a secondary condition.
- Peripheral Neuropathy (Isoniazid-Induced) Isoniazid, the cornerstone of anti TB therapy, causes peripheral neuropathy by depleting pyridoxine (Vitamin B6). Veterans on long term isoniazid therapy may develop numbness, tingling, and burning in the extremities a secondary condition attributable to renal TB treatment.
- Pulmonary Tuberculosis Renal TB almost always originates as a secondary site of infection following primary pulmonary or miliary TB. Veterans with renal TB may also have or have had pulmonary TB, which is rated separately under DC 6730 series and may have independent presumptive service connection provisions.
- Anemia of Chronic Disease / Renal Anemia Advanced CKD from renal TB reduces erythropoietin production by the kidneys, leading to normocytic normochromic anemia. This is a ratable secondary condition when caused by service connected renal TB.
- Nephrolithiasis (Kidney Stones) Nephrocalcinosis resulting from renal TB can progress to frank nephrolithiasis. Kidney stones from calcium deposits in TB damaged kidneys may be claimed as secondary to renal TB.
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This C&P exam preparation guide is for educational purposes only and does not constitute legal, medical, or claims advice. Always consult with a qualified Veterans Service Organization (VSO) representative or VA-accredited attorney for guidance specific to your claim. Never exaggerate, minimize, or fabricate symptoms during a C&P examination.