FY2016
Effective from
- First observed
Deformity of finger(s)
Category — select a more specific code
CDC/NCHS · FY2016For 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
Deformity of finger(s)
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 |
Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Disorders affecting predominantly peripheral (limb) joints
M20.00Unspecified deformity of finger(s)Category · further specificity requiredM20.01Mallet fingerCategory · further specificity requiredM20.02Boutonniere deformityCategory · further specificity requiredM20.03Swan-neck deformityCategory · further specificity requiredM20.09Other deformity of finger(s)Category · further specificity requiredOther entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| M20.1 | Hallux valgus (acquired) | Category · further specificity required |
| M20.2 | Hallux rigidus | Category · further specificity required |
| M20.3 | Hallux varus (acquired) | Category · further specificity required |
| M20.4 | Other hammer toe(s) (acquired) | Category · further specificity required |
| M20.5 | Other deformities of toe(s) (acquired) | Category · further specificity required |
| M20.6 | Acquired deformities of toe(s), unspecified | Category · further specificity required |
Official titles and instructions are preserved in their source language. Official sources ↗