MCMedicalCodingSoftware
M25.6

M25.6: Stiffness of joint, not elsewhere classified

Non-billable headerICD-10-CM

M25.6 is a non-billable header ICD-10-CM code for stiffness of joint, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • ankylosis of joint (M24.6-)
  • contracture of joint (M24.5-)

Excludes2 inherited from the categories above M25.6

Not part of this code, but both may be coded when both are present.

Written on M25: Other joint disorder, not elsewhere classified

  • abnormality of gait and mobility (R26.-)
  • acquired deformities of limb (M20-M21)
  • calcification of bursa (M71.4-)
  • calcification of shoulder (joint) (M75.3)
  • calcification of tendon (M65.2-)
  • difficulty in walking (R26.2)
  • temporomandibular joint disorder (M26.6-)

Other codes that can never be billed with M25.6

Their own Excludes1 notes name this code, so the conflict is not listed above.

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead M25.6

9 child codes. Green means billable.

Other codes under M25

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.