M67.37 is the authoritative medical code for Transient synovitis, ankle and foot. This classification is used in medical billing and clinical recording to specify the clinical criteria for transient synovitis, ankle and foot (ICD-10-CM M67.37), 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
Transient synovitis, ankle and foot is a non-billable ICD-10-CM category code M67.37. A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): palindromic rheumatism M12.3-; palmar fascial fibromatosis Dupuytren; tendinitis NOS M77.9-; xanthomatosis localized to tendons E78.2.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for M67.37 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- palindromic rheumatism M12.3-
- palmar fascial fibromatosis Dupuytren
- tendinitis NOS M77.9-
- xanthomatosis localized to tendons E78.2
Frequently Asked Questions (FAQ) & Clinical Guidance
Can M67.37 be billed directly?
No. M67.37 (Transient synovitis, ankle and foot) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
What can't be coded together with M67.37?
Per Excludes1 instructions, M67.37 must not be reported with: palindromic rheumatism (M12.3-); palmar fascial fibromatosis [Dupuytren] (M72.0); tendinitis NOS (M77.9-); xanthomatosis localized to tendons (E78.2).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as M67.37, with their registry titles.
- M67 — Other disorders of synovium and tendon
- M67.0 — Short Achilles tendon (acquired)
- M67.00 — Short Achilles tendon (acquired), unspecified ankle
- M67.01 — Short Achilles tendon (acquired), right ankle
- M67.02 — Short Achilles tendon (acquired), left ankle
- M67.2 — Synovial hypertrophy, not elsewhere classified
- M67.20 — Synovial hypertrophy, not elsewhere classified, unspecified site
- M67.21 — Synovial hypertrophy, not elsewhere classified, shoulder
- M67.211 — Synovial hypertrophy, not elsewhere classified, right shoulder
- M67.212 — Synovial hypertrophy, not elsewhere classified, left shoulder
- M67.219 — Synovial hypertrophy, not elsewhere classified, unspecified shoulder
- M67.22 — Synovial hypertrophy, not elsewhere classified, upper arm
- M67.221 — Synovial hypertrophy, not elsewhere classified, right upper arm
- M67.222 — Synovial hypertrophy, not elsewhere classified, left upper arm
- M67.229 — Synovial hypertrophy, not elsewhere classified, unspecified upper arm
- M67.23 — Synovial hypertrophy, not elsewhere classified, forearm
- M67.231 — Synovial hypertrophy, not elsewhere classified, right forearm
- M67.232 — Synovial hypertrophy, not elsewhere classified, left forearm
- M67.239 — Synovial hypertrophy, not elsewhere classified, unspecified forearm
- M67.24 — Synovial hypertrophy, not elsewhere classified, hand
- M67.241 — Synovial hypertrophy, not elsewhere classified, right hand
- M67.242 — Synovial hypertrophy, not elsewhere classified, left hand
- M67.249 — Synovial hypertrophy, not elsewhere classified, unspecified hand
- M67.25 — Synovial hypertrophy, not elsewhere classified, thigh
- M67.251 — Synovial hypertrophy, not elsewhere classified, right thigh
- M67.252 — Synovial hypertrophy, not elsewhere classified, left thigh
- M67.259 — Synovial hypertrophy, not elsewhere classified, unspecified thigh
- M67.26 — Synovial hypertrophy, not elsewhere classified, lower leg
- M67.261 — Synovial hypertrophy, not elsewhere classified, right lower leg
- M67.262 — Synovial hypertrophy, not elsewhere classified, left lower leg
- M67.269 — Synovial hypertrophy, not elsewhere classified, unspecified lower leg
- M67.27 — Synovial hypertrophy, not elsewhere classified, ankle and foot
- M67.271 — Synovial hypertrophy, not elsewhere classified, right ankle and foot
- M67.272 — Synovial hypertrophy, not elsewhere classified, left ankle and foot
- M67.279 — Synovial hypertrophy, not elsewhere classified, unspecified ankle and foot
- M67.28 — Synovial hypertrophy, not elsewhere classified, other site
- M67.29 — Synovial hypertrophy, not elsewhere classified, multiple sites
- M67.3 — Transient synovitis
- M67.30 — Transient synovitis, unspecified site
- M67.31 — Transient synovitis, shoulder
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: