Imetelstat (Rytelo) — CPB 1063 | AETNA Coverage Update

Aetna modified CPB 1063 for imetelstat (Rytelo), effective September 26, 2025. Here's what billing teams need to do.

Aetna, a CVS Health company, updated its imetelstat (Rytelo) coverage policy under CPB 1063 in the CPB 1063 Aetna system. The change confirms that precertification is required for all participating providers and members in applicable plan designs. The policy does not list specific CPT or HCPCS codes in the current data — a gap your billing team needs to address before submitting claims.

Quick-Reference Table

Aetna Imetelstat Coverage Criteria and Medical Necessity Requirements 2025

The Aetna imetelstat coverage policy under CPB 1063 applies to commercial medical plans only. Medicare criteria are handled separately — see Aetna's Medicare Part B step therapy page, not this bulletin.

The policy establishes that precertification is mandatory. This is not optional, and it is not plan-specific — it applies to all Aetna participating providers and members in applicable plan designs. Skipping this step means claim denial is essentially guaranteed.

What the policy does not do — at least in the current published data — is spell out the specific medical necessity criteria that drive approval or denial decisions. That's a real problem for billing teams. Without published criteria, you are flying without a map, and your compliance officer should know that.

The prior authorization requirement is clear. To get precertification, call Aetna at (866) 752-7021 or fax (888) 267-3277. For Statement of Medical Necessity (SMN) precertification forms, go to Aetna's Specialty Pharmacy Precertification page directly.

CPB 1063, as published in the available source data, does not include the specific medical necessity criteria Aetna uses to approve or deny imetelstat. Your team needs to obtain those criteria directly from Aetna during the precertification call. Ask specifically what clinical documentation the policy requires. Write down what you hear, who told you, and when. That record protects you if a claim is denied later.

The SMN form is your vehicle for documenting medical necessity. Fill it out completely before you submit anything.

Coverage Indications at a Glance

The current published version of CPB 1063 does not include a detailed, indication-by-indication breakdown in the available policy data. The table below reflects what the policy does confirm:

Because specific medical necessity criteria are not published in the available policy data, your team should request Aetna's full clinical criteria during the precertification call. Document what you receive. That conversation is your paper trail if a claim is denied later.

Aetna Imetelstat Billing Guidelines and Action Items 2025

The effective date of September 26, 2025 is already in effect. If your practice bills imetelstat for Aetna commercial members and you have not set up a precertification workflow, you are already exposed.

Here is exactly what your billing team needs to do:

The real issue here is the gap in billing guidelines. Aetna has confirmed that precertification is required, but has not yet published the full clinical criteria or specific billing codes in the data available. That ambiguity creates claim denial risk, especially for practices that are new to billing imetelstat. If you are unsure how this applies to your payer mix or your existing imetelstat cases, loop in your compliance officer before the next authorization request goes out.

CPT, HCPCS, and ICD-10 Codes for Imetelstat Under CPB 1063

The current CPB 1063 policy data does not list specific CPT, HCPCS, or ICD-10 codes. This is worth flagging loudly — imetelstat billing without confirmed codes is a real operational risk.

What your billing team should do in the absence of published codes:

Ask Aetna's precertification team directly: "What HCPCS or J-code should we use to bill imetelstat for commercial plans under CPB 1063?" Document the answer, the date, and the name of the representative. That documentation protects you if a claim is later denied for an incorrect code.

As general industry context — not anything stated or implied by CPB 1063 — specialty drugs with recent FDA approval often carry a J-code or a temporary HCPCS code. Commercial payers like Aetna typically follow similar code structures. But this is general background, not a substitute for confirming the applicable code directly with Aetna before you bill.

Until Aetna publishes confirmed billing codes for imetelstat in CPB 1063, do not include a code table here. Fabricating codes — even well-reasoned ones — creates compliance exposure that outweighs any workflow convenience.

This is one of those situations where your compliance officer needs to be in the room. The combination of a high-cost specialty drug, a precertification requirement, and missing billing code data is exactly the kind of scenario that generates six-figure write-offs when teams make assumptions instead of asking questions.