MedCodeSearch
ICD-10-CM Current in FY 2027

M66.173

Rupture of synovium, unspecified ankle

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where M66.173 sits in the official hierarchy. Each level is the code it is classified under.

  1. M66 Spontaneous rupture of synovium and tendon
  2. M66.1 Rupture of synovium
  3. M66.17 Parent Rupture of synovium, ankle, foot and toes
  4. M66.173 This code Rupture of synovium, unspecified ankle

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Includes

rupture that occurs when a normal force is applied to tissues that are inferred to have less than normal strength

Inherited from M66 — Spontaneous rupture of synovium and tendon

Excludes2

rupture of popliteal cyst ( M66.0 )

Inherited from M66.1 — Rupture of synovium

Excludes2

rotator cuff syndrome ( M75.1- )

Inherited from M66 — Spontaneous rupture of synovium and tendon

Excludes2

rupture where an abnormal force is applied to normal tissue - see injury of tendon by body region

Inherited from M66 — Spontaneous rupture of synovium and tendon

Version History

How M66.173 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Rupture of synovium, unspecified ankle

  2. FY 2026 Effective

    Unchanged

    Rupture of synovium, unspecified ankle

Related Codes

Other codes under M66.17

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

MedCodeSearch is an independent reference service and is not affiliated with CMS, CDC, or the U.S. government.

Look up another code

Search ICD-10-CM, ICD-10-PCS and HCPCS Level II by code or description.