The Challenge

Navigating ESRD Bundled Payments

Nephrology billing operates under one of the most complex payment frameworks in healthcare. The ESRD Prospective Payment System bundles drugs, labs, and services into a single composite rate, while physician services follow monthly capitated payment rules that vary based on visit frequency and patient age. Missing the nuances means leaving significant revenue on the table.

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Monthly Capitated Payment (MCP)

ESRD physician MCP billing (90960-90962, 90966) is based on the number of face-to-face visits per month. We ensure proper visit count documentation, correct code selection based on monthly visit frequency (4+, 2-3, or 1 visit), and accurate age-based modifiers for patients under 2, 2-11, 12-19, and 20+ years.

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Dialysis Procedure Coding

Hemodialysis (90935-90937), peritoneal dialysis (90945-90947), and continuous renal replacement therapy (CRRT) each carry distinct CPT codes with specific documentation requirements for session initiation, physician evaluation, and complication management. We code every dialysis encounter with precision.

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Vascular Access Procedures

AV fistula creation (36818-36821), graft placement, catheter insertion (36556-36558), and interventional access maintenance (36901-36906) represent significant revenue for nephrology practices. We manage surgical coding, global periods, and the distinction between initial access creation and subsequent interventional maintenance procedures.

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ESRD PPS Bundle Navigation

The ESRD PPS bundles erythropoiesis-stimulating agents (ESAs), certain labs, and ancillary services into the facility composite rate. We ensure items that fall outside the bundle — such as separately billable drugs, outlier adjustments, and transitional add-on payments — are captured and billed correctly to prevent revenue leakage.

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Acute Kidney Injury Billing

AKI (non-ESRD) dialysis billing follows different rules than chronic ESRD. Inpatient AKI dialysis uses procedure-based codes rather than monthly capitation. We ensure proper differentiation between AKI and ESRD billing, correct place-of-service coding, and appropriate E/M documentation for hospital-based nephrology consultations.

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Transplant Nephrology

Pre-transplant evaluation, post-transplant management, and transplant rejection monitoring involve specialized E/M coding, immunosuppressant medication management, and coordination with transplant surgery billing. We manage the transition from ESRD dialysis billing to post-transplant outpatient management seamlessly.

Our Approach

End-to-End Nephrology Revenue Cycle Management

Our nephrology billing team understands the dual-track nature of nephrology revenue — facility-based dialysis payments and physician professional services. We optimize both streams simultaneously while maintaining strict compliance with CMS bundling rules.

MCP visit tracking with automated documentation auditing to ensure visit counts support the monthly code billed and that partial-month proration is handled correctly
Home dialysis training billing (90989, 90993) with proper documentation of training sessions, competency assessments, and the distinction between initial training and retraining
ESA billing compliance including erythropoietin (J0885) and darbepoetin (J0881) with hemoglobin monitoring documentation, dose justification, and ESRD PPS bundle vs. separately billable determination
Lab panel bundling under ESRD PPS — identifying which labs are included in the composite rate and which qualify for separate payment with proper condition codes
Kt/V adequacy documentation ensuring dialysis adequacy measures are properly documented to support medical necessity and quality reporting requirements
Cross-specialty coordination with cardiology, oncology, and pain management for complex comorbidity management billing

Nephrology Coding Coverage

Our team codes across the full nephrology CPT and HCPCS range:

ESRD MCP (90960-90962, 90966)
Hemodialysis (90935-90937)
Peritoneal dialysis (90945-90947)
Home dialysis training (90989, 90993)
AV fistula/graft (36818-36821)
Vascular access interventions (36901-36906)
Catheter placement (36556-36558)
ESA administration (J0885, J0881)

Our Process

How We Optimize Your Nephrology Revenue

Patient Classification & Benefit Verification

We verify ESRD vs. non-ESRD status, Medicare coordination of benefits periods (30-month rule), Medicaid eligibility, and commercial coverage. Proper payer sequencing for ESRD patients is critical to avoiding claim rejections and delayed payments.

Monthly MCP & Dialysis Coding

We reconcile physician visit logs against documentation to assign the correct MCP code based on visit frequency, code individual dialysis procedures for non-MCP encounters, and capture all separately billable services performed during the month.

Bundle Compliance & Separate Billing

We analyze every service against the ESRD PPS bundle to determine whether it falls within the composite rate or qualifies for separate payment. This includes drugs, labs, vascular access procedures, and outlier-qualifying services that many practices inadvertently leave unbilled.

Quality Reporting & Revenue Assurance

We support ESRD Quality Incentive Program (QIP) reporting, track quality measure performance, and ensure documentation supports both clinical quality and billing accuracy. Denial management includes specialized appeals for MCP visit count disputes and bundle-related claim rejections.

FAQ

Nephrology Billing Questions Answered

The MCP system pays nephrologists a monthly capitated rate for managing ESRD patients on dialysis. The code selected depends on the number of face-to-face visits that month: 90960 for 4+ visits, 90961 for 2-3 visits, 90962 for 1 visit, and 90966 for a complete assessment without a face-to-face visit (telehealth-eligible). Each visit must be documented with a separate note showing the physician evaluated the patient. The monthly payment covers routine dialysis management, but separately identifiable E/M services for acute problems can be billed with modifier -25 when properly documented.

The ESRD PPS bundle includes the dialysis treatment itself, drugs and biologicals historically paid separately (including ESAs and iron preparations), laboratory tests included in the composite rate (CBC, metabolic panels, iron studies), and certain supplies. Items not included in the bundle — such as separately billable drugs with transitional add-on payment adjustments, vascular access procedures, and non-renal-related services — can be billed separately. We maintain a current matrix of bundled vs. separately billable items and flag any services at risk of incorrect bundling.

Vascular access procedures span creation (AV fistula 36818-36821, AV graft 36825-36830), maintenance (thrombectomy 36831, angioplasty 36901-36906), and catheter management (placement 36556-36558, exchange 36581, removal 36589). Each has distinct global periods and modifier requirements. We track every patient's access history, manage global period overlaps, ensure proper coding of interventional maintenance procedures with their imaging components, and coordinate between the performing surgeon's professional fee and the facility's technical billing.

For ESRD patients who have employer group health plan (EGHP) coverage, Medicare is the secondary payer during the first 30 months of ESRD eligibility. After the 30-month coordination period, Medicare becomes the primary payer. We track each patient's coordination period dates, ensure claims are submitted to the correct primary payer, coordinate benefits between Medicare and the group plan, and manage the transition when Medicare assumes primary status. Incorrect payer sequencing is one of the most common causes of nephrology claim rejections.

Yes. Home dialysis training is billed using 90989 (completed course per day) for training sessions and 90993 for retraining. Training billing covers the nurse educator time, supplies, and equipment used during training. The physician's supervision of training is included in the monthly MCP. CMS encourages home dialysis and training is separately reimbursable. We ensure documentation captures each training session, documents competency milestones, and properly distinguishes initial training from retraining episodes triggered by access changes or modality switches.

Under the ESRD PPS, erythropoiesis-stimulating agents (epoetin alfa J0885, darbepoetin J0881) are bundled into the facility composite rate for ESRD dialysis patients. The dialysis facility includes ESA costs in their bundled claim. However, for non-ESRD patients receiving ESAs (such as chemotherapy-induced anemia), the drug is separately billable. We ensure proper patient classification drives correct ESA billing — bundled for ESRD, separately billed for non-ESRD — and that hemoglobin monitoring documentation supports medical necessity for every administered dose.

The ESRD Quality Incentive Program (QIP) ties a portion of Medicare payment to quality performance. Key measures include Kt/V dialysis adequacy (minimum 1.2 for hemodialysis), vascular access type (fistula-first initiative), hypercalcemia rates, standardized hospitalization ratio, and patient experience surveys (ICH-CAHPS). Facilities that fail to meet minimum performance scores face payment reductions of up to 2%. We ensure documentation supports quality measure reporting and flag patients whose adequacy metrics may impact the practice's quality scores.

Transplant nephrology billing covers pre-transplant evaluation (E/M consultations, immunologic testing), immediate post-transplant inpatient management, and long-term outpatient follow-up including immunosuppressant management and graft surveillance. When a dialysis patient receives a transplant, the MCP billing transitions to standard E/M coding. We manage this transition carefully, prorate the final MCP month, initiate post-transplant E/M billing, and coordinate with the transplant surgery team's billing to prevent overlapping claims. Medicare Part B covers immunosuppressive drugs for 36 months post-transplant (extended indefinitely under recent legislation), which we track and bill appropriately.

Compliance & Security

HIPAA-Compliant Nephrology Billing Operations

Nephrology and dialysis billing involves complex Medicare coordination, ESRD-specific payment rules, and sensitive chronic disease management data. Our operations are built on HIPAA, ISO 27001, and HITRUST compliance frameworks with specialized controls for the unique regulatory environment of ESRD care.

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ESRD Data Security

All patient records, dialysis treatment data, and Medicare coordination information are processed within encrypted, access-controlled environments. Our team maintains specialized training on CMS ESRD billing regulations and the unique compliance requirements of dialysis facility billing.

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Bundle Compliance Auditing

We perform quarterly audits of ESRD PPS bundle compliance, verifying that bundled items are not billed separately and that separately billable items are properly captured. Audit results are shared with your practice to ensure ongoing compliance with CMS composite rate requirements.

Nephrology & Dialysis Billing That Navigates ESRD, MCP, and Bundled Payment Complexity