ICD-10 Code for Ankylosis
The default ICD-10-CM 2027 code for ankylosis (fibrous) (osseous) (joint) is M24.60 – Ankylosis, unspecified joint. More specific codes depend on the details documented, as listed in the official index (16 codes, 7 billable).
- Main code
M24.60– Ankylosis, unspecified joint- Billable
- Yes
Index entries for Ankylosis
- ankle –
M24.67-(header) - arthrodesis status –
Z98.1 - cricoarytenoid (cartilage) (joint) (larynx) –
J38.7 - dental –
K03.5 - ear ossicles –
H74.31-(header) - elbow –
M24.62-(header) - foot –
M24.67-(header) - hand –
M24.64-(header) - hip –
M24.65-(header) - incostapedial joint (infectional) – see Ankylosis, ear ossicles
- jaw (temporomandibular) –
M26.61-(header) - knee –
M24.66-(header) - lumbosacral (joint) –
M43.27 - postoperative (status) –
Z98.1 - produced by surgical fusion, status –
Z98.1 - sacro-iliac (joint) –
M43.28 - shoulder –
M24.61-(header) - specified site NEC –
M24.69 - spine (joint) – see also Fusion, spine
- spondylitic – see Spondylitis, ankylosing
- surgical –
Z98.1 - temporomandibular –
M26.61-(header) - tooth, teeth (hard tissues) –
K03.5 - wrist –
M24.63-(header)
How to choose the right code
Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.
Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.