Medicare (CMS LCD/NCD) Injection, Tendon Sheath / Ligament prior authorization requirements (2026)
What Medicare (CMS LCD/NCD) generally requires to approve Injection, Tendon Sheath / Ligament (CPT 20550), for Medicare plans. Based on the cited policy, Medicare (CMS LCD/NCD) does not generally require prior authorization for Injection, Tendon Sheath / Ligament (CPT 20550). Confirm with Medicare (CMS LCD/NCD), as this can vary by plan.
Medical-necessity criteria Medicare (CMS LCD/NCD) generally applies
No Medicare Part B prior authorization applies in the office setting: this injection service is not on the CMS hospital-OPD prior-authorization list (42 CFR 419.83, HOPD-only) and is not a WISeR model service category. Coverage turns on reasonable-and-necessary documentation (diagnosis, failed conservative measures where applicable, response to any prior injections). MAC LCDs/articles may impose frequency limits for repeat injections (e.g., trigger point injections) - verify against the current Novitas (JL) policy for New Jersey. [NEEDS CLINICAL SPOT-CHECK]
Commonly required documentation
- Signed order/plan of care with clinical indication
- procedure note
- for repeat injections, documented response to prior injection.
How to submit
- Method: No prior authorization to submit - bill Part B with supporting documentation on file.
Sources & verification
Sources: CMS OPD prior-authorization program (cms.gov/data-research/monitoring-programs/medicare-fee-service-compliance-programs/prior-authorization-pre-claim-review-initiatives/prior-authorization-certain-hospital-outpatient-department-opd-services, verified 2026-07-09); CMS WISeR model page (cms.gov/priorities/innovation/innovation-models/wiser). Office/professional-claim setting; the OPD PA list applies to hospital outpatient departments only. Last verified 2026-07-09.
Frequently asked questions
Does Medicare (CMS LCD/NCD) require prior authorization for Injection, Tendon Sheath / Ligament?
Based on the cited policy, Medicare (CMS LCD/NCD) does not generally require prior authorization for Injection, Tendon Sheath / Ligament (CPT 20550). Confirm with Medicare (CMS LCD/NCD), as this can vary by plan.
What does Medicare (CMS LCD/NCD) require to approve Injection, Tendon Sheath / Ligament?
No Medicare Part B prior authorization applies in the office setting: this injection service is not on the CMS hospital-OPD prior-authorization list (42 CFR 419.83, HOPD-only) and is not a WISeR model service category. Coverage turns on reasonable-and-necessary documentation (diagnosis, failed conservative measures where applicable, response to any prior injections). MAC LCDs/articles may impose f… Always confirm against the current Medicare (CMS LCD/NCD) policy.
How long does a Medicare (CMS LCD/NCD) prior authorization take?
Turnaround varies by plan and submission method. Check the Medicare (CMS LCD/NCD) portal for current timeframes.
Submitting Injection, Tendon Sheath / Ligament to Medicare (CMS LCD/NCD)?
Praxigen checks your clinical note against these criteria before you submit and drafts a policy-cited appeal if it is denied. You review and submit; nothing is sent automatically.