G0491 Insurance Policy Changes

HCPCS G0491 is officially defined as "Dialysis procedure at a medicare certified esrd facility for acute kidney injury without esrd." HCPCS G0491 is referenced in 4 tracked payer policy changes from Medicare/CMS, Blue Cross of Idaho, and 1 other payer. For billers and coders, staying current on payer-specific coverage criteria, reimbursement rules, and prior-authorization requirements for HCPCS G0491 is critical to clean claim submission. Each entry below links to the full policy analysis with effective dates and action steps.

Medicare/CMS · Effective May 18, 2026Medium impact
2026-05-14 - CMS Announces Early Adopters to Advance Solutions for Electronic Prior Authorization, Accelerating Momentum Ahead of 2027 Requirements
CMS announces Electronic Prior Authorization Acceleration initiative with 30 healthcare organizations as early adopters to address workflow and technical barriers ahead of 2027 requirements. Bone growth stimulator codes E0747, E0748, and E0760 are reclassified as Class II devices effective May 18, 2026, requiring removal of KF modifier and updated fee schedules.
Blue Cross of Idaho · Identified Oct 26, 2026Medium impact
PAP420 - Dialysis Billing - Added new Revenue and HCPCS code.
Blue Cross of Idaho has revised PAP420 to add new Revenue and HCPCS codes for dialysis billing, effective October 2026. The policy clarifies accepted CPT/Revenue code combinations for dialysis modalities on UB-04 claims and requires compliance with current Medicare claims submission guidelines. Billing teams must verify the specific new codes added and update billing systems accordingly.
Aetna · Identified Oct 1, 2026Medium impact
Dialysis (CPB 0541, reviewed 2026-08-26)
Aetna's dialysis policy (CPB 0541), last reviewed 08/26/2026, considers hemodialysis or intermittent peritoneal dialysis up to 3 times per week medically necessary for renal failure. More frequent dialysis is considered medically necessary when hyperkalemia, hypophosphatemia, pregnancy, fluid overload, acute pericarditis, congestive heart failure, pulmonary edema or severe catabolic state is refractory to dialysis 3 times per week. Home hemodialysis equipment, supplies and skilled nursing visits are considered medically necessary when prescribed by a physician for members with end stage renal disease, and the equipment is usually rented during the first 30 months of hemodialysis.
Aetna · Identified Aug 14, 2026Medium impact
Dialysis (CPB 0541, reviewed 2025-11-26)
Aetna considers hemodialysis or intermittent peritoneal dialysis up to 3 times per week medically necessary for renal failure, and more than 3 times per week when hyperkalemia, hypophosphatemia, pregnancy, fluid overload, acute pericarditis, congestive heart failure, pulmonary edema, or severe catabolic state is refractory to dialysis 3 times per week. Home hemodialysis is medically necessary when prescribed by a physician for members with end stage renal disease, and percutaneous arteriovenous fistula creation is considered medically necessary as an alternative to surgical creation. Angioplasty using FDA-approved plain or drug-coated balloons is considered medically necessary for dysfunctional arterio-venous dialysis fistulae, while wearable hemodialysis machines and the Crit-Line In-Line Monitor are considered experimental, investigational, or unproven.

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REFERENCE DATA

Payers with rules2

Payers requiring prior auth2

CalViva Health · Effective December 31, 2025
Prior authorization required
CalViva Health CMS-0057-F prior authorization requirements
Community Health Plan of Imperial Valley · Effective December 31, 2025
Prior authorization required
Community Health Plan of Imperial Valley CMS-0057-F prior authorization requirements

FREQUENTLY ASKED QUESTIONS

Does CalViva Health require prior authorization for G0491?

CalViva Health lists G0491 on CalViva Health CMS-0057-F prior authorization requirements for medicaid managed plans (list dated December 31, 2025). Verify with the payer before scheduling.

Does Community Health Plan of Imperial Valley require prior authorization for G0491?

Community Health Plan of Imperial Valley lists G0491 on Community Health Plan of Imperial Valley CMS-0057-F prior authorization requirements for medicaid managed plans (list dated December 31, 2025). Verify with the payer before scheduling.

What insurance policy changes affect HCPCS G0491?

There are 4 tracked policy changes affecting HCPCS G0491, including updates from Medicare/CMS, Blue Cross of Idaho, Aetna. Each change may modify coverage criteria, reimbursement rates, or prior-authorization requirements.

Which payers have updated policy for HCPCS G0491?

Payers that have issued tracked updates for HCPCS G0491 include: Medicare/CMS, Blue Cross of Idaho, Aetna.

How do I get notified when HCPCS G0491 policy changes?

Create a free account at PolicyChanges.app and save a search filtered to HCPCS G0491. You will get an email when new policy changes reference this code: daily or weekly, your choice, on every plan.

Why do payers change policies for HCPCS G0491?

Payers revise policies for individual billing codes to align with updated clinical guidelines, CMS rule changes, fraud and abuse prevention measures, or network cost-management goals. Changes can affect medical necessity criteria, place-of-service restrictions, bundling rules, or whether a code requires prior authorization.

See every payer rule for G0491

Prior authorization lists, coverage criteria, NCCI edits and Medicare coverage articles for G0491 in one place.

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All billing codes J3590 C9399 J3490 99215 99213 99202

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2026-05-14 - CMS Announces Early Adopters to Advance Solutions for Electronic Prior Authorization, Accelerating Momentum Ahead of 2027 Requirements

PAP420 - Dialysis Billing - Added new Revenue and HCPCS code.

Dialysis (CPB 0541, reviewed 2026-08-26)

Dialysis (CPB 0541, reviewed 2025-11-26)

Prior authorization required