FY2020
Effective from
- Code-level rules changed
Valgus deformity, not elsewhere classified
Category — select a more specific code
CDC/NCHS · FY2020For 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
Latest recorded change · FY2020
Effective from
Valgus deformity, not elsewhere classified
Category — select a more specific code
CDC/NCHS · FY2020| 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 | Code-level rules changed |
| 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
M21.00Valgus deformity, not elsewhere classified, unspecified siteBillable / specificM21.02Valgus deformity, not elsewhere classified, elbowCategory · further specificity requiredM21.05Valgus deformity, not elsewhere classified, hipCategory · further specificity requiredM21.06Valgus deformity, not elsewhere classified, kneeCategory · further specificity requiredM21.07Valgus deformity, not elsewhere classified, ankleCategory · further specificity requiredOther entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| M21.1 | Varus deformity, not elsewhere classified | Category · further specificity required |
| M21.2 | Flexion deformity | Category · further specificity required |
| M21.3 | Wrist or foot drop (acquired) | Category · further specificity required |
| M21.4 | Flat foot [pes planus] (acquired) | Category · further specificity required |
| M21.5 | Acquired clawhand, clubhand, clawfoot and clubfoot | Category · further specificity required |
| M21.6 | Other acquired deformities of foot | Category · further specificity required |
| M21.7 | Unequal limb length (acquired) | Category · further specificity required |
| M21.8 | Other specified acquired deformities of limbs | Category · further specificity required |
| M21.9 | Unspecified acquired deformity of limb and hand | Category · further specificity required |
Official titles and instructions are preserved in their source language. Official sources ↗
Excludes 1 · valgus deformities (acquired) (M21.0-)