ICD-10/M25.27

M25.27 ICD 2026 Code: Flail joint, ankle and foot

M25.27 is the authoritative medical code for Flail joint, ankle and foot. This classification is used in medical billing and clinical recording to specify the clinical criteria for flail joint, ankle and foot (ICD-10-CM M25.27), ensuring healthcare documentation aligns with 2026 federal coding standards.

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Official Registry Overview & Definition

Flail joint, ankle and foot is a non-billable ICD-10-CM category code M25.27. A more specific billable subcode must be selected for claims submission. Excludes2 (not included here): 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-; joints of the spine M40-M54.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for M25.27 in the official ICD-10-CM tabular list.

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

  • 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-
  • joints of the spine M40-M54

Frequently Asked Questions (FAQ) & Clinical Guidance

Can M25.27 be billed directly?

No. M25.27 (Flail joint, ankle and foot) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Can M25.27 be reported alongside related conditions?

Per official ICD-10-CM Excludes2 instructions, M25.27 and the following are not considered part of each other and may both be reported when both conditions are present: abnormality of gait and mobility (R26.-); acquired deformities of limb (M20-M21); calcification of bursa (M71.4-); calcification of shoulder (joint) (M75.3).

Nearest Codes in This Family

Official ICD-10-CM classifications closest to M25.27 in its code family, with their registry titles.

  • M25.271 — Flail joint, right ankle and foot
  • M25.272 — Flail joint, left ankle and foot
  • M25.279 — Flail joint, unspecified ankle and foot