Effective from
- First observed
Loose body in joint
Category — select a more specific code
CDC/NCHS · FY2016current injury - see injury of joint by body region
loose body in knee (M23.4)
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
Loose body in joint
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 |
loose body in knee (M23.4)
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
current injury - see injury of joint by body region
M24.00Loose body in unspecified jointBillable / specificM24.01Loose body in shoulderCategory · further specificity requiredM24.02Loose body in elbowCategory · further specificity requiredM24.03Loose body in wristCategory · further specificity requiredM24.04Loose body in finger jointsCategory · further specificity requiredM24.05Loose body in hipCategory · further specificity requiredM24.07Loose body in ankle and toe jointsCategory · further specificity requiredM24.08Loose body, other siteBillable / specificOther entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| M24.1 | Other articular cartilage disorders | Category · further specificity required |
| M24.2 | Disorder of ligament | Category · further specificity required |
| M24.3 | Pathological dislocation of joint, not elsewhere classified | Category · further specificity required |
| M24.4 | Recurrent dislocation of joint | Category · further specificity required |
| M24.5 | Contracture of joint | Category · further specificity required |
| M24.6 | Ankylosis of joint | Category · further specificity required |
| M24.7 | Protrusio acetabuli | Billable / specific |
| M24.8 | Other specific joint derangements, not elsewhere classified | Category · further specificity required |
| M24.9 | Joint derangement, unspecified | Billable / specific |
Official titles and instructions are preserved in their source language. Official sources ↗