Nephrology Billing — Built for Your Practice
Nephrology billing is dialysis billing — and dialysis billing runs on a framework no other specialty uses. ESRD patients don't generate individual claim visits; they generate one monthly capitation payment based on how many face-to-face visits were documented that month. Bill the wrong tier — 90962 for one visit when four actually happened — and you've permanently lost three visits' worth of reimbursement, for that month, forever.
Our nephrology billing team tracks face-to-face visit counts for every ESRD patient, every month, and applies the correct capitation code. We also manage the non-dialysis revenue nephrologists routinely miss: CKD management E&M, transitional billing for new ESRD starts, acute AKI dialysis billing that should never ride the ESRD track, and vascular access procedure billing that represents a real revenue stream on its own.
What's Costing Nephrology Practices Money Right Now
These are the specific, avoidable spots where nephrology revenue quietly disappears before a claim ever gets appealed.
Submitting 90961 when four visits actually occurred permanently underpays that patient for the month — the difference between capitation tiers is gone the moment the claim is filed.
An AKI patient on temporary dialysis gets placed on the ESRD monthly billing track by mistake, creating compliance issues that persist even after kidney function recovers.
Vascular access procedures — AV fistula creation, graft placement, thrombectomy — get performed without prior authorization, turning a $2,500–$4,500 procedure into a non-covered service with limited appeal options.
A new rash, an ankle injury, or a blood glucose emergency addressed during a dialysis visit goes unbilled because modifier -25 was never added to the separately identifiable E&M.
The first month of a CKD-to-ESRD transition — with its own initiation-period billing window — gets missed entirely because most practices don't track the one-time transition trigger.
Home dialysis training sessions and monthly supervision get billed inconsistently because they follow a different code set than in-center hemodialysis.
Top Nephrology Claim Denial Reasons — and How We Eliminate Them
Most Nephrology denials are preventable. Our team knows exactly what to look for before submission.
❌ Wrong ESRD Capitation Code Due to Inaccurate Visit Counting
At the end of each month, the capitation code submitted must match the actual number of documented face-to-face physician visits for each ESRD patient. Practices that submit 90960 without verifying that 4+ visits are documented open themselves to post-payment audit; those that submit 90961 when 4 visits occurred are permanently underpaid. A 150-patient ESRD panel where 30% of months use the wrong code tier represents thousands of dollars in monthly revenue variance.
✓ Our Fix
Our ESRD billing system maintains a per-patient monthly visit log that is updated every time a dialysis visit is documented. At month-end, the visit count is automatically verified against the capitation code selected. Discrepancies generate an alert before submission — not a correction request after audit.
❌ AKI Patient Incorrectly Billed on ESRD Monthly Track
An AKI patient requiring temporary dialysis during hospitalization should be billed using inpatient E&M or critical care codes — not ESRD monthly capitation codes. When a hospitalist or nephrologist places an AKI patient on the ESRD billing track during a temporary dialysis course, it creates compliance issues and incorrect billing patterns that persist even if the patient recovers kidney function and never becomes ESRD.
✓ Our Fix
We maintain separate billing tracks for ESRD patients (monthly capitation) and AKI/acute dialysis patients (per-service billing). New patients are classified at intake based on their underlying diagnosis and dialysis indication. Any patient crossing from ESRD track to acute track (or vice versa) requires physician attestation of the clinical change.
❌ Vascular Access Procedure Prior Authorization Not Obtained
AV fistula creation (36818, 36819), AV graft placement (36830), fistula revision (36832), and thrombectomy (36831) require prior authorization from most commercial payers and Medicare Advantage plans. Missing authorization on a $2,500–$4,500 vascular access procedure means billing a non-covered service with limited retroactive appeal options.
✓ Our Fix
Every elective vascular access procedure is authorized before the surgical date. Authorization requests include: the specific procedure planned, clinical documentation of fistula/graft failure or maturation failure, imaging supporting the planned access site, and the nephrologist's assessment of access needs. Emergency vascular access (thrombectomy, urgent revision) is handled with expedited same-day authorization requests.
❌ Separately Billable Service on Dialysis Day Billed Without Modifier -25
ESRD monthly capitation includes all dialysis-related services. When an unrelated problem is managed on a dialysis day — a new rash requiring dermatology referral, ankle pain from a fall, or blood glucose emergency — that service is separately billable. But it requires modifier -25 on the E&M code documenting a significant, separately identifiable service beyond the dialysis-related care. Missing modifier -25 results in the payer bundling the additional E&M into the monthly capitation payment.
✓ Our Fix
We review monthly dialysis visit notes for documentation of non-ESRD issues addressed during the visit. When significant separate problems are documented with appropriate clinical content (history, exam, assessment, plan beyond dialysis adjustment), we add the E&M code with modifier -25. We do not add E&M codes without documentation supporting a separate identifiable service.
Our Nephrology Billing Process, Start to Finish
ESRD Visit-Count Charge Capture
A per-patient monthly visit log is updated every time a dialysis visit is documented, and the capitation code (90960/90961/90962) is verified against the actual count before submission.
Eligibility & Prior Authorization
We verify coverage and obtain prior authorization for elective vascular access procedures before the surgical date, with complete clinical documentation of fistula/graft failure or maturation.
ESRD/AKI Track & Compliance Audits
New patients are classified at intake by diagnosis and dialysis indication, and any patient crossing between the ESRD and acute dialysis track requires physician attestation before billing changes.
Denial Prevention & Recovery
Dialysis-day visit notes are reviewed for separately billable non-ESRD issues before applying modifier -25, and any denial that still occurs is tracked, corrected at the root, and appealed.
Reporting & Revenue Insights
A real-time dashboard shows your ESRD capitation accuracy, denial trends, and outstanding claims by code tier and patient panel.
Everything Included with ZenoMedix RCM Nephrology Billing
- ESRD monthly capitation visit-count tracking — 90960/90961/90962 accuracy guaranteed
- AKI acute dialysis billing separated from ESRD track with compliance documentation
- New ESRD patient transitional billing (first month initiation period coding)
- Home dialysis training (90989–90993) and monthly supervision (90963–90965) billing
- Vascular access surgery prior authorization and procedure billing (36818–36832)
- Kidney biopsy (50200) with imaging guidance and pathology coordination
- CKD stage-specific E&M coding with annual wellness and CCM billing for eligible patients
- 98.5%+ collection rate for nephrology and dialysis practices
Complete Revenue Cycle for Nephrology Practices
What Sets ZenoMedix RCM Apart in Nephrology Billing
Not every billing company is built the same way. Here's what changes when your nephrology claims run through ours.
Visit-Count Accuracy, Not Guesswork
A per-patient monthly visit log is updated with every documented dialysis visit and verified against the capitation code before submission — discrepancies get flagged, not discovered after audit.
Every Denial Appealed, Never Written Off
A missed vascular access authorization or a bundled dialysis-day E&M gets tracked, corrected at the root cause, and appealed — never simply absorbed as a loss.
Pay Only When We Collect
Percentage-based pricing tied to what we actually collect for your practice, with no long-term contract locking you in.
Real-Time Visibility Into Your Revenue
A live dashboard shows your ESRD capitation accuracy, denial trends, and outstanding claims by code tier — no waiting on a monthly PDF.
We Partner With Every Type of Nephrology Practice
In-Center Hemodialysis Practices
ESRD monthly capitation billing (90960/90961/90962) built on a per-patient visit log verified against the actual documented face-to-face count.
Home Dialysis Programs (HHD / PD)
Home dialysis training (90989–90993) and monthly supervision (90963–90965) billed on their own code set, separate from in-center capitation tracking.
Acute / Inpatient AKI Dialysis Services
Per-service billing for acute kidney injury dialysis kept on its own track — never the ESRD monthly capitation codes — with physician attestation for any diagnosis change.
Vascular Access Surgery Practices
Prior authorization and procedure billing for AV fistula creation, graft placement, revision, and thrombectomy (36818–36832).
CKD Management / Pre-Dialysis Practices
CKD stage-specific E&M coding, plus transitional billing for the first month a patient moves from CKD management into ESRD.
Post-Transplant Nephrology Clinics
Standard fee-for-service E&M and transplant management billing, kept separate from the dialysis practice's capitation billing configuration.
Nephrology Billing Available in All 50 States
From California to New York, our Nephrology billing specialists understand your state's Medicaid program, payer mix, and compliance requirements.
Find Your State →Nephrology Billing FAQ
ESRD monthly capitation billing replaces individual visit billing for end-stage renal disease patients on dialysis. The nephrologist submits one capitation claim per patient per month, using a code that reflects the number of documented face-to-face visits during that month: 90960 for 4 or more visits, 90961 for 2–3 visits, and 90962 for 1 visit. The monthly payment varies by code tier and by Medicare fee schedule locality. At the end of each month, we audit the visit documentation for every ESRD patient and assign the correct code before submitting. We never submit capitation codes without verifying the supporting visit documentation.
ESRD is permanent kidney failure requiring lifelong dialysis. AKI is acute kidney injury requiring temporary dialysis during a critical illness. The billing is entirely different: ESRD = monthly capitation codes (90960-90965); AKI = per-session inpatient evaluation codes or outpatient dialysis procedure codes (90937 for hemodialysis, 90945 for peritoneal or other methods). When an AKI patient recovers and dialysis is discontinued, billing stops. When an AKI patient progresses to ESRD, the ESRD billing track begins. We document the clinical transition clearly in the billing record and coordinate with the physician to ensure the correct track is active for each patient.
Yes. Home peritoneal dialysis billing uses separate monthly capitation codes from in-center hemodialysis: 90963 (home hemodialysis), 90964 (CAPD — continuous ambulatory peritoneal dialysis), 90965 (CCPD — continuous cycling peritoneal dialysis). Training for home dialysis is separately billable using 90989 (home dialysis — less than 3 months of ESRD) or 90993 (training each session). We track home dialysis training sessions and monthly supervision visits separately from in-center patient tracking.
The month a CKD patient starts dialysis is the transition month. Medicare pays the full monthly ESRD capitation even if dialysis starts mid-month. The initiating nephrologist should bill 90960 (if 4+ visits occurred, including the initiation visit) or the appropriate lower-tier code for that partial month. We identify new ESRD starts on the day dialysis is initiated, open an ESRD billing record immediately, and ensure the first month claim captures all physician contacts during the initiation period — including the pre-ESRD education visit, initiation visit, and any follow-up visits in that first calendar month.
Yes. Post-transplant nephrology billing is fee-for-service E&M billing (not capitation) with specific considerations: transplant patients are no longer ESRD patients for billing purposes once they have a functioning kidney, immunosuppressive medication management requires its own prior authorization track, and transplant-related complications (rejection episodes, biopsy-confirmed rejection) have specific diagnosis codes that affect billing. We maintain separate billing configurations for dialysis patients (monthly capitation) and post-transplant patients (standard E&M + transplant management codes).
Yes. ESRD monthly capitation includes all dialysis-related services, but a genuinely separate problem — a new rash needing a dermatology referral, ankle pain from a fall, a blood glucose emergency — is separately billable as an E&M service with modifier -25, as long as the documentation shows a significant, separately identifiable history, exam, and plan beyond the routine dialysis adjustment. We review monthly dialysis visit notes specifically for this documentation and add the E&M code with modifier -25 only when it's supported — never as a default add-on.
Yes. AV fistula creation (36818, 36819), AV graft placement (36830), fistula revision (36832), and thrombectomy (36831) require prior authorization from most commercial payers and Medicare Advantage plans, and these procedures typically run $2,500–$4,500 — a non-covered claim on a missed authorization has limited retroactive appeal options. We submit authorization for every elective vascular access procedure before the surgical date, including clinical documentation of fistula or graft failure, imaging supporting the planned access site, and the nephrologist's assessment, and we handle emergency vascular access with expedited same-day authorization requests.
Nephrology Billing Results — By the Numbers
See How Much More Your Nephrology Practice Can Collect
- ✓Specialty-specific coding analysis
- ✓Denial pattern review
- ✓Payer mix assessment
- ✓Revenue recovery estimate