ICD-10-CM 2027 diagnosis code
M67.37Transient synovitis, ankle and foot
M67.37 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About M67.37
M67.37 is the ICD-10-CM diagnosis code for transient synovitis, ankle and foot. It belongs to category M67 (other disorders of synovium and tendon), block M65-M67 (disorders of synovium and tendon) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
Within M67.3 (transient synovitis), M67.37 is specifically for transient synovitis, ankle and foot. Related codes cover unspecified site (M67.30), shoulder (M67.31), elbow (M67.32), wrist (M67.33), hand (M67.34), hip (M67.35), knee (M67.36), other site (M67.38) and 1 more.
To report this condition, pick the subcode that matches the documentation: M67.371 (foot), M67.372 (foot) and M67.379 (foot).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under M67.37
Notes that apply from higher levels
Instructions written at a parent level also apply to M67.37.
› From M67.3 Transient synovitis
- palindromic rheumatism (M12.3-)
Broader instructions also apply from Chapter 13: Diseases of the musculoskeletal system and connective tissue.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to M67.37.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about M67.37
Is M67.37 billable?
- No. M67.37 is a header code. Report one of its more specific subcodes instead.