Headache, Occipital, and/or Trigeminal Neuralgia Treatment - (0063) — MM 0063 | CIGNA Coverage Update

Cigna modified MM 0063 for headache, occipital neuralgia, and trigeminal neuralgia treatment, effective September 26, 2025. Every CPT and HCPCS code in this policy — including nerve block injections (CPT 64400, 64405, 64450), neurostimulator implants (CPT 64553–64590), and 13 HCPCS device codes — carries a "not medically necessary" designation for ablative and electrical stimulation procedures. Here's what billing teams need to know before claims go out the door.

Cigna Healthcare updated its coverage policy MM 0063 covering ablative treatments, electrical stimulation, and surgical procedures for chronic headache conditions and neuralgia. The policy covers adults with chronic migraine, chronic cluster headache, cervicogenic headache, occipital neuralgia, and trigeminal neuralgia. All 10 CPT codes and all 13 HCPCS codes listed in this policy carry a "considered not medically necessary" designation for ablative and stimulation-based procedures — which means your denial risk on these services is high and climbing.

Quick-Reference Table

Cigna Headache and Neuralgia Coverage Criteria and Medical Necessity Requirements 2025

The Cigna headache and occipital neuralgia coverage policy (MM 0063 Cigna system) draws a sharp line between what it covers and what it doesn't. Nerve blocks for headache diagnosis groups — chronic migraine, chronic cluster headache, cervicogenic headache, occipital neuralgia, and trigeminal neuralgia — are addressed in this policy. So are ablative treatments, electrical stimulation devices, and surgical procedures for those same conditions.

The real issue here is the medical necessity standard Cigna applies to the ablative and stimulation side of this policy. Every CPT code tied to neurostimulator implantation and every HCPCS code tied to neurostimulator devices and TENS units lands in the "not medically necessary" bucket. If your practice bills CPT 64553 (percutaneous implantation of neurostimulator electrode array, cranial nerve) or CPT 64568 (open implantation of cranial nerve neurostimulator) for headache or neuralgia conditions, Cigna is telling you directly: those claims will not get paid.

This coverage policy applies to adults only. Pediatric patients are outside the scope of MM 0063 entirely — so if you're billing for a minor, you need a different policy review before you submit.

Prior authorization requirements are not explicitly enumerated in the MM 0063 policy summary, but given that these procedures carry a blanket not-medically-necessary designation, you should assume prior auth requests for these services will be denied outright. Talk to your compliance officer before submitting a prior authorization for any ablative or stimulation-based headache procedure for Cigna members.

Cigna Headache and Neuralgia Exclusions and Non-Covered Indications

This is where MM 0063 does the most financial damage to neurology and pain management practices. The policy's "not medically necessary" designation is not procedure-specific in a nuanced way — it's applied as a category-level exclusion covering all ablative treatments, all electrical stimulation procedures, and all surgical options for headache and neuralgia.

That's a sweeping position. It covers nerve transection (CPT 64744, transection or avulsion of the greater occipital nerve), open neurostimulator implantation (CPT 64575, open implantation of neurostimulator electrode array for peripheral nerve), pulse generator insertion (CPT 64590), and even TENS devices (HCPCS E0720 and E0730). All of them. Not medically necessary when used to report ablative, stimulation, or surgical treatment for these headache and neuralgia diagnoses.

The ICD-10 diagnosis codes in scope run 106 codes deep — from B02.22 (postherpetic trigeminal neuralgia) through the full G43 migraine spectrum and into G44 cluster headache codes. That breadth matters. If you pair any of those diagnosis codes with the listed CPT or HCPCS codes, Cigna's position is clear: claim denial is the default outcome.

This is similar to the pattern Cigna used in its spinal cord stimulation policies — broad not-medically-necessary designations applied to device-based interventions, with the burden on the provider to overturn through appeal with clinical evidence. You're not going to pre-authorize your way around this. The policy itself closes that door.

Coverage Indications at a Glance

Cigna Headache and Neuralgia Billing Guidelines and Action Items 2025

The effective date of September 26, 2025 is already in your rearview mirror. If you haven't audited your charge capture for these codes yet, start today.

CPT, HCPCS, and ICD-10 Codes for Headache and Neuralgia Treatment Under MM 0063

Not Covered CPT Codes — All Carry "Not Medically Necessary" Designation for Ablative/Stimulation Use

Not Covered HCPCS Codes — All Carry "Not Medically Necessary" Designation for Ablative/Stimulation Use

Key ICD-10-CM Diagnosis Codes in Scope Under MM 0063

The full MM 0063 code list includes 106 ICD-10-CM codes. Review the complete policy at the Cigna source document for all applicable diagnosis codes before submitting claims.