FY2016
Effective from
- First observed
Rupture of synovium, ankle, foot and toes
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, ankle, foot and toes
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 |
The official Tabular List has no additional instructions at this code level.
Review the instructions inherited from its parent categories below. Inherited instructions ↓
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
Rupture of synovial cyst
rupture of popliteal cyst (M66.0)
M66.171Rupture of synovium, right ankleBillable / specificM66.172Rupture of synovium, left ankleBillable / specificM66.173Rupture of synovium, unspecified ankleBillable / specificM66.174Rupture of synovium, right footBillable / specificM66.175Rupture of synovium, left footBillable / specificM66.176Rupture of synovium, unspecified footBillable / specificM66.177Rupture of synovium, right toe(s)Billable / specificM66.178Rupture of synovium, left toe(s)Billable / specificM66.179Rupture of synovium, unspecified toe(s)Billable / specificOther entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| M66.10 | Rupture of synovium, unspecified joint | Billable / specific |
| M66.11 | Rupture of synovium, shoulder | Category · further specificity required |
| M66.12 | Rupture of synovium, elbow | Category · further specificity required |
| M66.13 | Rupture of synovium, wrist | Category · further specificity required |
| M66.14 | Rupture of synovium, hand and fingers | Category · further specificity required |
| M66.15 | Rupture of synovium, hip | Category · further specificity required |
| M66.18 | Rupture of synovium, other site | Billable / specific |
Official titles and instructions are preserved in their source language. Official sources ↗