M67.9 – Unspecified disorder of synovium and tendon

ICD-10-CM 2027 diagnosis code · Disorders of synovium and tendon

Non-billable header

ICD-10-CM code M67.9

Code: M67.9 (claims format: M679)
Description: Unspecified disorder of synovium and tendon
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block: M65-M67 Disorders of synovium and tendon
Parent codes: M67

Billable codes under M67.9

M67.9 is a header code and cannot be used on claims. Choose the most specific code:

M67.90 – Unspecified disorder of synovium and tendon, unspecified siteBillable
M67.91 – Unspecified disorder of synovium and tendon, shoulderHeader (more codes below)
M67.92 – Unspecified disorder of synovium and tendon, upper armHeader (more codes below)
M67.93 – Unspecified disorder of synovium and tendon, forearmHeader (more codes below)
M67.94 – Unspecified disorder of synovium and tendon, handHeader (more codes below)
M67.95 – Unspecified disorder of synovium and tendon, thighHeader (more codes below)
M67.96 – Unspecified disorder of synovium and tendon, lower legHeader (more codes below)
M67.97 – Unspecified disorder of synovium and tendon, ankle and footHeader (more codes below)
M67.98 – Unspecified disorder of synovium and tendon, other siteBillable
M67.99 – Unspecified disorder of synovium and tendon, multiple sitesBillable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

M67 – Other disorders of synovium and tendon

Excludes1 (not coded here):

palmar fascial fibromatosis [Dupuytren] (M72.0)
tendinitis NOS (M77.9-)
xanthomatosis localized to tendons (E78.2)

Related codes in M67

M67.0 – Short Achilles tendon (acquired)Header
M67.2 – Synovial hypertrophy, not elsewhere classifiedHeader
M67.3 – Transient synovitisHeader
M67.4 – GanglionHeader
M67.5 – Plica syndromeHeader
M67.8 – Other specified disorders of synovium and tendonHeader
M67.A – Plantar fasciitisHeader

Frequently asked questions

What is ICD-10 code M67.9?

M67.9 is the ICD-10-CM code for unspecified disorder of synovium and tendon, in the block M65-M67 (Disorders of synovium and tendon).

Is M67.9 a billable code?

No. M67.9 is a header code with more specific child codes; report one of the billable codes listed above.

What category does M67.9 belong to?

It belongs to category M67 – Other disorders of synovium and tendon.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.