ICD-10-CM 2027 diagnosis code
M25.6Stiffness of joint, not elsewhere classified
M25.6 is a header code, so it can't be reported by itself. Choose one of the 9 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 M25.6
M25.6 is the ICD-10-CM diagnosis code for Stiffness of joint, not elsewhere classified. It belongs to category M25 (other joint disorder, not elsewhere classified), block M20-M25 (other joint disorders) 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 9 subcodes must be used instead.
Within M25 (other joint disorder, not elsewhere classified), M25.6 is specifically for Stiffness of joint, not elsewhere classified. Related codes cover Hemarthrosis (M25.0), fistula of joint (M25.1), Flail joint (M25.2), other instability of joint (M25.3), effusion of joint (M25.4), pain in joint (M25.5), Osteophyte (M25.7), other specified joint disorders (M25.8) and 1 more.
To report this condition, pick the subcode that matches the documentation: M25.60 (classified), M25.61 (classified), M25.62 (classified), M25.63 (classified), M25.64 (classified), M25.65 (classified), M25.66 (classified), M25.67 (classified) and 1 more.
Don't report M25.6 together with the conditions in its Excludes1 note: ankylosis of joint (M24.6-) and contracture of joint (M24.5-).
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 M25.6
- M25.60Stiffness of unspecified joint, not elsewhere classifiedBillable
- M25.61Stiffness of shoulder, not elsewhere classified
- M25.62Stiffness of elbow, not elsewhere classified
- M25.63Stiffness of wrist, not elsewhere classified
- M25.64Stiffness of hand, not elsewhere classified
- M25.65Stiffness of hip, not elsewhere classified
- M25.66Stiffness of knee, not elsewhere classified
- M25.67Stiffness of ankle and foot, not elsewhere classified
- M25.671Stiffness of right ankle, not elsewhere classifiedBillable
- M25.672Stiffness of left ankle, not elsewhere classifiedBillable
- M25.673Stiffness of unspecified ankle, not elsewhere classifiedBillable
- M25.674Stiffness of right foot, not elsewhere classifiedBillable
- M25.675Stiffness of left foot, not elsewhere classifiedBillable
- M25.676Stiffness of unspecified foot, not elsewhere classifiedBillable
- M25.69Stiffness of other specified joint, not elsewhere classifiedBillable
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to M25.6.
Broader instructions also apply from M20-M25 Other joint disorders and Chapter 13: Diseases of the musculoskeletal system and connective tissue.
Codes whose notes reference M25.6
- M24.6Excludes1
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 M25.6
Is M25.6 billable?
- No. M25.6 is a header code. Report one of its more specific subcodes instead.