FY2016
Effective from
- First observed
Rupture of synovium
Category — select a more specific code
CDC/NCHS · FY2016rupture of popliteal cyst (M66.0)
For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.
Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.
Official coding guidelines → · CMS ↗First observed · 2015-10-01
No recorded change since first observation
Effective from
Rupture of synovium
Category — select a more specific code
CDC/NCHS · FY2016| All editions | Effective from | Code history |
|---|---|---|
| FY2016 | 2015-10-01 | First observed |
| FY2017 | 2016-10-01 | No tabular change |
| FY2018 | 2017-10-01 | No tabular change |
| FY2019 | 2018-10-01 | No tabular change |
| FY2020 | 2019-10-01 | No tabular change |
| FY2020 · April | 2020-04-01 | No tabular change |
| FY2021 | 2020-10-01 | No tabular change |
| FY2021 · 01-01 | 2021-01-01 | No tabular change |
| FY2022 | 2021-10-01 | No tabular change |
| FY2022 · 04-01 | 2022-04-01 | No tabular change |
| FY2023 | 2022-10-01 | No tabular change |
| FY2023 · 04-01 | 2023-04-01 | No tabular change |
| FY2024 | 2023-10-01 | No tabular change |
| FY2024 · 04-01 | 2024-04-01 | No tabular change |
| FY2025 | 2024-10-01 | No tabular change |
| FY2025 · 04-01 | 2025-04-01 | No tabular change |
| FY2026 | 2025-10-01 | No tabular change |
| FY2026 · April | 2026-04-01 | No tabular change |
| FY2027 | 2026-10-01 | No tabular change |
Rupture of synovial cyst
rupture of popliteal cyst (M66.0)
Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
rupture that occurs when a normal force is applied to tissues that are inferred to have less than normal strength
M66.10Rupture of synovium, unspecified jointBillable / specificM66.11Rupture of synovium, shoulderCategory · further specificity requiredM66.12Rupture of synovium, elbowCategory · further specificity requiredM66.13Rupture of synovium, wristCategory · further specificity requiredM66.14Rupture of synovium, hand and fingersCategory · further specificity requiredM66.15Rupture of synovium, hipCategory · further specificity requiredM66.17Rupture of synovium, ankle, foot and toesCategory · further specificity requiredM66.18Rupture of synovium, other siteBillable / specificOther entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| M66.0 | Rupture of popliteal cyst | Billable / specific |
| M66.2 | Spontaneous rupture of extensor tendons | Category · further specificity required |
| M66.3 | Spontaneous rupture of flexor tendons | Category · further specificity required |
| M66.8 | Spontaneous rupture of other tendons | Category · further specificity required |
| M66.9 | Spontaneous rupture of unspecified tendon | Billable / specific |
Official titles and instructions are preserved in their source language. Official sources ↗