M26.611 — Adhesions and ankylosis of right temporomandibular joint
M26.611 is a billable, specific ICD-10-CM code for adhesions and ankylosis of right temporomandibular joint. It is valid for submission on a claim.
Excludes2 inherited from the categories above M26.611
Also inherited, and the opposite of Excludes1: these conditions are not part of M26.611, but a patient can have both, so you may code both.
Other codes that can never be billed with M26.611
These codes carry an Excludes1 note pointing at M26.611. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M26.611 alone.
Risk adjustment
M26.611 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
M26.611 is named in 8 Medicare coverage policies — 1 listing it as supporting medical necessity, and 7 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A58865Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A58883Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A58893Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A59374Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
Code history
M26.611 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share M26.61. If M26.611 is not quite right, the correct code is usually one of these.
Questions about M26.611
- Is M26.611 a billable ICD-10-CM code?
- Yes. M26.611 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does M26.611 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Dentofacial anomalies [including malocclusion] and other disorders of jaw (M26-M27).