Cigna modified MM 0004 covering extracorporeal shock wave therapy (ESWT) for musculoskeletal conditions, effective November 15, 2025. Every code under this policy — CPT 0102T, 28890, 20999, and 28899 — is classified as experimental, investigational, or unproven. Here's what that means for your claims.
Cigna Healthcare's MM 0004 coverage policy takes a hard stance: ESWT for musculoskeletal conditions gets no coverage. Not for plantar fasciitis. Not for tendinopathy. Not for anything billed under these four codes. If your team bills ESWT for Cigna commercial members, you're about to eat denials unless you act before November 15, 2025.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | Cigna Healthcare |
| Policy | Extracorporeal Shock Wave Therapy (ESWT) for Musculoskeletal Conditions |
| Policy Code | MM 0004 |
| Change Type | Modified |
| Effective Date | November 15, 2025 |
| Impact Level | High |
| Specialties Affected | Orthopedic surgery, podiatry, physical medicine & rehabilitation, sports medicine, pain management |
| Key Action | Audit all pending and upcoming ESWT claims for Cigna members and stop scheduling ESWT without a clear financial responsibility agreement in place |
Cigna ESWT Coverage Criteria and Medical Necessity Requirements 2025
Here's the blunt version: Cigna does not cover ESWT for musculoskeletal conditions. Full stop.
The MM 0004 coverage policy classifies all four applicable codes as experimental, investigational, or unproven. That classification is meaningful. Under Cigna's billing guidelines, "experimental/investigational/unproven" is not a soft maybe — it's a hard denial category. Medical necessity criteria don't even enter the picture, because Cigna has decided the clinical evidence doesn't support coverage in the first place.
This applies to high-energy ESWT procedures (CPT 28890), shock wave therapy requiring anesthesia beyond local (CPT 0102T), and any unlisted procedure codes your team might use to bill ESWT under musculoskeletal (CPT 20999) or foot and toe (CPT 28899) categories. There is no pathway to prior authorization that unlocks reimbursement here. Prior auth isn't even relevant — there's nothing to authorize.
If you've been submitting ESWT claims for Cigna members and getting occasional reimbursement, verify those EOBs carefully. It's possible earlier adjudication was inconsistent, but with the modified policy effective November 15, 2025, that window closes.
Cigna ESWT Exclusions and Non-Covered Indications
This is the unusual part of MM 0004: every code in the policy falls into the non-covered bucket. There's no covered tier. No "covered when medically necessary" column. The entire coverage policy is an exclusion list.
The codes specifically called out as experimental, investigational, or unproven are CPT 0102T, CPT 28890, CPT 20999, and CPT 28899. These cover the full practical range of how a billing team might submit an ESWT claim — from high-energy FDA-cleared procedures (28890) to physician-administered shock wave therapy under anesthesia (0102T) to the unlisted fallback codes many practices use when a specific CPT doesn't map cleanly.
The unlisted codes (20999 and 28899) deserve special attention. Some billing teams reach for unlisted codes hoping for a fresh look at adjudication. That doesn't work here. Cigna explicitly calls out 20999 and 28899 as part of MM 0004, which means even a creative code substitution triggers the same denial.
The real issue is the "investigational" label. Cigna isn't saying ESWT is harmful or contraindicated — they're saying the evidence base doesn't meet their threshold for coverage. That's a peer-reviewed clinical argument, and it's one you can't rebut with a prior auth request or a letter of medical necessity alone.
Coverage Indications at a Glance
| Indication | Status | Relevant Codes | Notes |
|---|---|---|---|
| ESWT for musculoskeletal conditions (general) | Experimental / Not Covered | 0102T, 28890, 20999, 28899 | All indications denied; no prior auth pathway |
| High-energy ESWT (e.g., plantar fasciitis, calcific tendinitis) | Experimental / Not Covered | 28890 | Applies regardless of diagnosis or conservative treatment history |
| ESWT requiring anesthesia beyond local | Experimental / Not Covered | 0102T | Denial applies even with documented anesthesia requirement |
| ESWT billed as unlisted musculoskeletal procedure | Experimental / Not Covered | 20999 | Code substitution does not bypass denial |
| ESWT billed as unlisted foot/toe procedure | Experimental / Not Covered | 28899 | Explicit callout in MM 0004 — not an oversight |
Cigna ESWT Billing Guidelines and Action Items 2025
| # | Action Item |
|---|---|
| 1 | Pull every scheduled ESWT procedure for Cigna members before November 15, 2025. Check your scheduling and charge capture systems for any ESWT appointments — CPT 28890 especially — booked on or after the effective date. You need to address patient financial responsibility before the service happens, not after. |
| 2 | Issue updated Advance Beneficiary Notice equivalents (financial responsibility agreements) now. Cigna commercial plans are not Medicare, but the principle is the same. If your practice wants to offer ESWT to Cigna members, patients need to acknowledge in writing that they're paying out of pocket before the service. Do this before the November 15, 2025 effective date — retroactive patient agreements are harder to enforce and create compliance exposure. |
| 3 | Flag CPT 0102T, 28890, 20999, and 28899 in your claim scrubber for Cigna payer IDs. Set a hard edit or a soft warning that fires any time these codes appear on a Cigna claim. Your billing team should not be submitting these cold — every one should go through a human review before it leaves your system. |
| 4 | Audit claims submitted in the last 12 months under CPT 28890, 0102T, 20999, or 28899 for Cigna members. If any of those claims paid, document how they paid and whether they're at risk for a retroactive denial or recoupment. A policy modification doesn't automatically trigger retroactive takebacks, but some Cigna contracts allow recoupment if a claim was paid in error. Know your exposure before someone else finds it. |
| 5 | Stop routing ESWT claim denials to peer-to-peer review as a standard practice. A peer-to-peer might get you a one-off reversal, but MM 0004 is a coverage policy, not a medical necessity determination. Peer-to-peer reviews work when a clinician reviewer disagrees about medical necessity. They rarely work when the payer's position is that the entire category of service is investigational. Redirect that time toward patient financial counseling instead. |
| 6 | Talk to your compliance officer before November 15, 2025 if you're unsure how MM 0004 interacts with any value-based or specialty contracts you hold with Cigna. Some bundled or capitated arrangements have carve-outs or different adjudication rules. Your compliance officer — or your Cigna provider relations contact — can confirm whether your specific contract changes this picture. |
| Previous Version | Current Version |
|---|---|
| Coverage is considered experimental and investigational for all indications | Coverage is considered medically necessary when specific criteria are met |
| Prior authorization is not required | Prior authorization is required for initial treatment |
| Documentation must include clinical history | Documentation must include clinical history |
| Re-review every 24 months | Re-review every 12 months with updated clinical documentation |
CPT, HCPCS, and ICD-10 Codes for ESWT Under MM 0004
Not Covered / Experimental Codes
All four codes under MM 0004 carry the same designation: experimental, investigational, or unproven for the treatment of musculoskeletal conditions. There are no covered codes under this policy.
| Code | Type | Description | Status |
|---|---|---|---|
| 0102T | CPT | Extracorporeal shock wave performed by a physician, requiring anesthesia other than local, involving musculoskeletal application | Experimental / Investigational / Unproven |
| 20999 | CPT | Unlisted procedure, musculoskeletal system, general | Experimental / Investigational / Unproven |
| 28890 | CPT | Extracorporeal shock wave, high energy, performed by a physician or other qualified health care professional, including ultrasound guidance, involving the plantar fascia | Experimental / Investigational / Unproven |
| 28899 | CPT | Unlisted procedure, foot or toes | Experimental / Investigational / Unproven |
Note on ICD-10 codes: MM 0004 does not list specific ICD-10-CM diagnosis codes. The experimental designation applies across all musculoskeletal indications regardless of diagnosis — so there's no combination of ICD-10 codes that unlocks coverage for these CPT codes under Cigna.
A Note on How This Compares to Other Payers
Cigna's position on ESWT isn't unique, but it is firm. CMS has not issued a national coverage determination (NCD) covering ESWT broadly — Medicare coverage for ESWT is limited and largely LCD-dependent at the Medicare Administrative Contractor level. Many MACs have issued local coverage determinations that cover high-energy ESWT for plantar fasciitis under specific criteria, which is why some practices assume commercial payers will follow suit. Cigna doesn't.
This creates a real operational problem for practices that treat patients with both Medicare and commercial Cigna coverage. Your billing team may correctly bill CPT 28890 for a Medicare patient with plantar fasciitis — and correctly deny the same claim for a Cigna commercial patient. That split-track adjudication means your staff needs to know the payer before they set patient expectations, not after the claim comes back.
Aetna and UnitedHealthcare have their own ESWT policies with different thresholds, so don't assume MM 0004 reflects an industry-wide shift. It reflects Cigna's specific clinical evidence review — and it's been their direction for years. This modification reinforces that position, not reverses it.
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