Cigna modified MM 0004 for extracorporeal shock wave therapy (ESWT) effective November 15, 2025, classifying all four applicable CPT codes as experimental, investigational, and unproven for musculoskeletal conditions. Here's what billing teams need to do.
Cigna Healthcare updated its ESWT coverage policy under MM 0004 to formally designate CPT codes 0102T, 20999, 28890, and 28899 as experimental or investigational for musculoskeletal conditions. If your practice bills shock wave therapy for plantar fasciitis, heel pain, or any other musculoskeletal indication to Cigna patients, this coverage policy change means claim denials are coming — and likely already baked into Cigna's adjudication logic as of 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 | Orthopedics, Podiatry, Physical Medicine & Rehabilitation, Sports Medicine, Musculoskeletal Radiology |
| Key Action | Stop billing CPT 0102T, 20999, 28890, and 28899 to Cigna for musculoskeletal indications without a robust appeals strategy in place |
Cigna ESWT Coverage Criteria and Medical Necessity Requirements 2025
Here's the short version: under MM 0004, there are no covered indications for ESWT in musculoskeletal conditions. Cigna's position is that ESWT does not meet the medical necessity threshold for any musculoskeletal application under its current clinical evidence review.
That's a hard stance. Cigna Healthcare is saying that the clinical evidence doesn't support ESWT as a proven, effective treatment — full stop. This isn't a "covered with conditions" policy. This is a blanket experimental designation.
Prior authorization won't save you here. Even if a provider obtains prior auth for one of these codes, Cigna's coverage policy under MM 0004 classifies the services as experimental. Prior authorization does not guarantee coverage or reimbursement when a service falls into the experimental or investigational category. If your team has been submitting prior auth requests assuming coverage will follow, that assumption is wrong.
Whether ESWT is covered under Cigna depends on plan type. Self-funded ERISA plans can — and sometimes do — override Cigna's standard medical necessity criteria. If you treat patients on self-funded Cigna plans, pull the Summary Plan Description before writing off these services entirely. But for fully insured Cigna commercial plans, MM 0004 is the controlling document as of November 15, 2025.
Cigna ESWT Exclusions and Non-Covered Indications
All four CPT codes in MM 0004 carry the same designation: experimental, investigational, and unproven for the treatment of musculoskeletal conditions.
CPT 28890 is the high-energy ESWT code specifically for plantar fasciitis and heel conditions performed by a physician or qualified health care professional. This is the code most podiatry and orthopedic practices use for shock wave therapy on the foot. Cigna is not covering it.
CPT 0102T covers extracorporeal shock wave performed by a physician requiring anesthesia other than local. This is the higher-acuity ESWT procedure. Also experimental under MM 0004.
CPT 20999 and 28899 are unlisted procedure codes — for the musculoskeletal system generally and for the foot or toes specifically. Unlisted codes sometimes allow billing teams to describe services that don't have a specific CPT. Under MM 0004, Cigna has closed that door for ESWT billing by marking both as experimental. Don't expect an unlisted code workaround to get these claims paid.
The real issue here is that Cigna has structured this policy to close off both the specific ESWT codes and the unlisted code alternatives in the same sweep. That's deliberate. It signals Cigna is not looking for creative billing solutions around this policy.
Coverage Indications at a Glance
| Indication | Status | Relevant Codes | Notes |
|---|---|---|---|
| Musculoskeletal conditions (all) — ESWT with anesthesia other than local | Experimental / Not Covered | 0102T | No covered indications under MM 0004 |
| Musculoskeletal conditions (all) — unlisted musculoskeletal procedure | Experimental / Not Covered | 20999 | Cigna closed unlisted code workaround |
| Plantar fasciitis / heel conditions — high-energy ESWT | Experimental / Not Covered | 28890 | Highest-volume ESWT code for podiatry; denied |
| Foot/toe conditions — unlisted procedure | Experimental / Not Covered | 28899 | Unlisted code alternative also blocked |
Cigna ESWT Billing Guidelines and Action Items 2025
| # | Action Item |
|---|---|
| 1 | Pull every open or pending Cigna ESWT claim before November 15, 2025 adjudicates them. If you have claims for CPT 0102T, 20999, 28890, or 28899 in the queue, expect denials. Review your accounts receivable now. Don't wait for EOBs to surface the problem. |
| 2 | Update your charge capture and billing guidelines to flag ESWT codes for Cigna patients. Build a hard stop in your practice management system that alerts billing staff when these codes are attached to a Cigna payer. This prevents future submissions that will auto-deny under MM 0004. |
| 3 | Check whether patients are on self-funded Cigna plans. Self-funded plans may have carved out ESWT coverage that differs from Cigna's standard MM 0004 position. Request the benefit summary or Summary Plan Description directly from the employer or plan administrator. Don't assume the standard coverage policy applies to every Cigna card you see. |
| 4 | Establish an Advance Beneficiary Notice (ABN) equivalent process for Cigna commercial patients. Cigna uses an equivalent financial responsibility notice for non-covered services. If your practice still offers ESWT, patients should sign a notice acknowledging Cigna will not cover the service and that they are financially responsible. Do this before treatment, not after. |
| 5 | Prepare an appeals framework if you believe clinical necessity exists. Appealing experimental designations is an uphill battle, but not impossible. You need peer-reviewed clinical evidence supporting ESWT for the specific condition, a Letter of Medical Necessity from the treating physician, and documentation of failed conservative treatments. If your compliance officer or billing consultant hasn't built this template yet, do it now — before your first denial lands. |
| 6 | Audit the last 12 months of Cigna ESWT claims. If your practice has been billing CPT 28890 for plantar fasciitis under Cigna, check whether those claims were paid. If they were paid before MM 0004's effective date, understand that Cigna may seek recoupment for any claims they believe were paid in error. Talk to your compliance officer about your exposure before the effective date of November 15, 2025 becomes the dividing line in any retrospective review. |
| 7 | Don't bill 20999 or 28899 as a workaround. Both unlisted codes are explicitly included in MM 0004's experimental designation. Submitting an unlisted procedure code to sidestep a specific code denial is also a potential compliance risk. The policy signals Cigna's intent clearly — billing workarounds here carry real claim denial and audit risk. |
| 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 codes under MM 0004 are classified as experimental, investigational, and unproven for the treatment of musculoskeletal conditions. There are no covered CPT codes under this policy.
| Code | Type | Description | Cigna Designation |
|---|---|---|---|
| 0102T | CPT | Extracorporeal shock wave performed by a physician, requiring anesthesia other than local, involving musculoskeletal conditions | 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, for plantar fasciitis | Experimental / Investigational / Unproven |
| 28899 | CPT | Unlisted procedure, foot or toes | Experimental / Investigational / Unproven |
No ICD-10-CM diagnosis codes are listed in MM 0004. The policy applies the experimental designation to musculoskeletal conditions broadly — it is not diagnosis-code-specific.
A Note on What This Policy Means for Podiatry and Orthopedics
CPT 28890 is the workhorse code for podiatrists and orthopedists treating plantar fasciitis with shock wave therapy. It's a legitimate, commonly used treatment with a real evidence base — which is why this policy is frustrating for clinicians.
Cigna's experimental designation doesn't mean ESWT doesn't work. It means Cigna has decided the clinical evidence doesn't meet its internal threshold for coverage. That's a coverage policy decision, not a clinical one. The distinction matters when you're talking to patients and when you're structuring appeals.
For billing teams, the clinical debate is secondary. The policy is the policy. CPT 28890 denial rates on Cigna claims will rise sharply after November 15, 2025 if your team doesn't act now.
If your practice volume includes significant Cigna patients receiving ESWT for plantar fasciitis or other musculoskeletal indications, talk to your billing consultant or compliance officer before year-end. The reimbursement exposure here is real, and the correction window is closing.
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