Acupuncture for Chronic Lower Back Pain (cLBP) — NCD 373 | CMS Coverage Update

TL;DR: The Centers for Medicare & Medicaid Services modified NCD 373 governing acupuncture for chronic lower back pain, with a policy review date of January 9, 2026. Here's what billing teams need to know to protect reimbursement and avoid claim denial.

CMS acupuncture coverage policy under NCD 373 Medicare has been in place since January 21, 2020 — but the January 2026 review confirms this coverage structure remains active and enforceable. If your practice bills acupuncture for Medicare patients, the medical necessity criteria, visit limits, and provider qualification requirements in this policy are the rules you're working under right now. This policy does not list specific CPT or HCPCS codes, which creates real documentation risk if your billing team isn't tracking visits and improvement criteria closely.

Quick-Reference Table

CMS Acupuncture for Chronic Lower Back Pain Coverage Criteria and Medical Necessity Requirements 2026

NCD 373 is the National Coverage Determination governing Medicare coverage of acupuncture for chronic lower back pain. The Centers for Medicare & Medicaid Services covers this service — but the definition of cLBP is narrow, and missing any part of it triggers a non-covered claim.

To meet medical necessity under this coverage policy, the patient's condition must check all four boxes. The pain must last 12 weeks or longer. It must be nonspecific — meaning no identifiable systemic cause. "No systemic cause" means not associated with metastatic, inflammatory, or infectious disease. It also cannot be associated with surgery or pregnancy.

That four-part definition is the foundation of your medical necessity documentation. If a patient's back pain has a specific, identifiable cause — even a benign one — it doesn't qualify under this NCD. Your treating provider needs to affirmatively document that all four criteria are met, not just that the patient has back pain.

On the visit structure: CMS covers up to 12 visits in 90 days as the initial course of treatment. An additional eight sessions are available — but only if the patient demonstrates improvement. That brings the maximum to 20 treatments per year. No more than 20 acupuncture treatments may be billed in a calendar year under this policy, full stop.

The improvement requirement for the additional eight sessions is a real audit risk. "Demonstrating improvement" must be documented clinically, not assumed. If your provider moves from the initial 12 visits to the additional eight without a documented functional improvement assessment in the chart, you're exposed on those claims.

Prior authorization is not explicitly required under NCD 373 as written. However, that doesn't mean your Medicare Advantage plans follow the same rules. Medicare Advantage plans can — and often do — impose prior authorization requirements that go beyond original Medicare NCD coverage policy. Verify separately with each MA plan before billing acupuncture billing claims.

CMS Acupuncture Exclusions and Non-Covered Indications

CMS draws a hard line here. All types of acupuncture — including dry needling — are non-covered by Medicare for any condition other than chronic lower back pain as defined above.

That's not a soft exclusion. It's categorical. Acupuncture for neck pain, osteoarthritis, headache, fibromyalgia, or any other diagnosis is not covered under Medicare. If your practice treats a wide range of conditions with acupuncture, only the cLBP cases that meet NCD 373's four-part definition belong on Medicare claims.

Dry needling gets called out specifically, and that matters. Some billing teams treat dry needling as a distinct service or try to bill it under different codes. CMS groups dry needling with acupuncture for coverage purposes. It's excluded from Medicare coverage for all conditions except qualifying cLBP.

Coverage Indications at a Glance

CMS Acupuncture Billing Guidelines and Action Items 2026

The effective date of January 9, 2026 means this reviewed policy is active now. These action items address the highest-risk areas in acupuncture billing under NCD 373.

CPT, HCPCS, and ICD-10 Codes for Acupuncture for Chronic Lower Back Pain Under NCD 373

Coverage Note on Codes

NCD 373 does not list specific CPT or HCPCS codes in the policy data. This is a real gap for billing teams. CMS's claims processing instructions — found in Transmittals TN 10128, TN 10337, and TN 12185 — govern how claims are submitted. Review those transmittals directly to confirm which procedure codes your MAC accepts for acupuncture billing under this NCD.

Contact your Medicare Administrative Contractor for current code-level guidance. MACs can vary in how they operationalize NCD billing guidelines at the local level, and some may have issued local coverage determination supplements or billing companion documents.

What This Means for Charge Capture

Because no codes are specified in the NCD itself, your acupuncture billing team needs to be working from MAC-level guidance, not just the NCD. Check the CMS website for the relevant transmittals listed in the cross-reference section of NCD 373. If your billing team isn't sure which codes your MAC accepts for cLBP acupuncture, get that confirmed before you submit — a claim denial based on incorrect code selection is avoidable.