M1261 (HCPCS) Reimbursement & Policy Benchmarks | OpenPayer

Summary & Overview

HCPCS Level II M1261: Kidney/Kidney-Pancreas Waitlist Prior to Dialysis

HCPCS Level II code M1261 documents patients who were on the kidney or kidney-pancreas transplant waitlist prior to initiating dialysis. Capturing waitlist status is clinically important for transplant eligibility tracking, preemptive transplant planning, and longitudinal care coordination for patients with advanced kidney disease. Nationally, standardized reporting of waitlist status supports transplant program metrics, quality measurement, and appropriate care transitions before dialysis initiation.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will gain a concise overview of the code’s clinical meaning and typical sites of service, plus the types of benchmarks and policy issues that commonly accompany transplant-waitlist reporting: claims documentation practices, payer coverage considerations for preemptive transplant planning, and implications for quality measurement and registry reporting. Where specific payer policies or modifiers are not provided in the source, the publication will note that Data not available in the input and focus on national clinical and billing context.

The article presents actionable reference material for coding teams, transplant program administrators, and payers seeking clarity on how waitlist status is represented in claims. It also identifies gaps in publicly available metadata and signals areas where further payer-specific policy review is often required.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareM1261HCPCS Level IIkidney transplantkidney-pancreas transplanttransplant waitlistnephrologypreemptive transplantoutpatient transplant center

Billing Code Overview

HCPCS Level II code M1261 indicates patients who were on the kidney or kidney-pancreas transplant waitlist prior to initiation of dialysis. This code documents transplant waitlist status as part of patient history and eligibility tracking.

Service type: Transplant waitlist status documentation and related care coordination
Typical site of service: Outpatient transplant programs, transplant centers, nephrology clinics, and facilities managing transplant waitlist enrollment

Clinical & Coding Specifications

Clinical Context

A 52-year-old patient with end-stage renal disease (ESRD) secondary to long-standing diabetes mellitus has been managed by a transplant center and was actively listed on the kidney transplant waitlist prior to initiation of maintenance hemodialysis. The patient presents to the dialysis unit for routine outpatient hemodialysis sessions following catheter placement three weeks earlier. The clinical workflow for reporting M1261 begins with documentation that the patient was on the kidney or kidney–pancreas waitlist before starting dialysis. The transplant coordinator or nephrologist confirms waitlist status in the electronic medical record, captures the date of listing, and documents the reason for dialysis initiation and any transplant-specific eligibility considerations. Billing staff apply M1261 on claims to indicate prior waitlist status; clinical notes, transplant center records, and dialysis start-date documentation are retained to support the code. Typical site of service is outpatient dialysis units, transplant clinics, and nephrology offices that coordinate transplant care and dialysis access planning. Common patient interactions include pre-dialysis transplant evaluation follow-up visits, dialysis intake assessments confirming active transplant waitlist status, and periodic transplant-related paperwork submissions to payors.

Coding Specifications

Modifier	Description	When to Use
`22`

Related Codes

HCPCS-M1475-HUNTINGTONS-DISEASE-CARE

HCPCS Level II M1475: Huntington's Disease Care

HCPCS-M1275-HOSPICE-EXCLUSION-REPORTING-PERIOD

HCPCS M1275: Hospice Exclusion From Evaluation and Reporting

HCPCS-M1412-METASTATIC-NSCLC-TARGETED-THERAPY-EGFR-ALK-ROS1-BRAF-NTRK-MET-RET

HCPCS M1412: Metastatic NSCLC with Targetable Genomic Alterations

HCPCS-M1323-POST-INJECTION-IOP-SCREENING-PLAN-OF-CARE

HCPCS M1323: Post-Injection IOP Screening and Plan of Care

HCPCS-M1200-ACE-INHIBITOR-ARB-PRESCRIPTION

HCPCS M1200: ACE Inhibitor or ARB Therapy Prescribed During Measurement Period

HCPCS-M1273-SNF-ADMISSION-WITHIN-ONE-YEAR-OF-DIALYSIS-INITIATION

HCPCS Level II M1273: SNF Admission Within One Year of Dialysis Initiation

HCPCS-M1338-FOLLOW-UP-FUNCTIONAL-ASSESSMENT-NO-IMPROVEMENT-30-180-DAYS

HCPCS M1338: Follow-up Functional Assessment, No Improvement (30–180 days)

HCPCS-M1379-COLONOSCOPY-10-YEAR-FOLLOW-UP-NOT-RECOMMENDED

HCPCS M1379: 10-Year Colonoscopy Follow-Up Not Recommended, NOS

HCPCS-M1443-TELEHEALTH-ENCOUNTER-VIRTUAL-VISIT

HCPCS M1443: Telehealth Encounter, Virtual Clinical Visit

HCPCS-M1238-RECOMBINANT-ZOSTER-DELAYED-SECOND-DOSE-DOCUMENTATION

HCPCS Level II M1238: Documentation of Delayed Second Recombinant Zoster Dose

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Taxonomy Code	Specialty	Notes
2080P0207X	Nephrology	Nephrologists manage dialysis initiation, transplant evaluation, and waitlist coordination.
2084P0800X	Transplant Surgery	Transplant surgeons perform kidney and kidney–pancreas transplantation and surgical evaluations.
208D00000X	Internal Medicine	Primary physicians coordinate chronic disease management and referral to transplant centers.
363L00000X	Nurse Practitioner	Advanced practice clinicians provide transplant follow-up, dialysis unit care, and documentation.
207L00000X	Physician Assistant	Physician assistants support surgical and clinic workflows for transplant candidates.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`N18.6`	End stage renal disease	Primary diagnosis for patients on dialysis and commonly present for those who were waitlisted prior to dialysis initiation.
`E10.22`	Type 1 diabetes mellitus with diabetic chronic kidney disease	Common cause of ESRD and a frequent indication for kidney–pancreas transplant evaluation and waitlisting.
`E11.22`	Type 2 diabetes mellitus with diabetic chronic kidney disease	Common cause of ESRD leading to transplant evaluation and waitlist placement.
`I12.9`	Hypertensive chronic kidney disease with stage 5 chronic kidney disease or ESRD	Hypertensive kidney disease is a frequent comorbidity in transplant candidates.
`Z94.0`	Kidney transplant status	Relevant in longitudinal records to document prior or previous transplant status when coordinating waitlist and dialysis care.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`99499`	Unlisted evaluation and management service	Used when transplant-specific coordination or complex non-standard E/M activity is documented and no specific CPT exists.
`90935`	Hemodialysis procedure with single evaluation by a physician or other qualified health care professional; for the initiation of dialysis therapy (first dialysis in a series)	Performed at dialysis initiation and may be documented in encounters for patients who were waitlisted prior to starting dialysis.
`99213`	Office or other outpatient visit for the evaluation and management of an established patient, typically 15 minutes	Common for routine transplant clinic follow-up visits documenting waitlist status and dialysis coordination.
`99214`	Office or other outpatient visit for the evaluation and management of an established patient, typically 25 minutes	Used when more complex transplant-related management and documentation are provided.
`36415`	Collection of venous blood by venipuncture	Often performed for pre-transplant labs and routine dialysis monitoring during visits confirming waitlist status.