Effective from
- First observed
Aneurysmal bone cyst
Category — select a more specific code
CDC/NCHS · FY2016aneurysmal cyst of jaw (M27.4)
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
Aneurysmal bone cyst
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 |
aneurysmal cyst of jaw (M27.4)
Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
M85.50Aneurysmal bone cyst, unspecified siteBillable / specificM85.51Aneurysmal bone cyst, shoulderCategory · further specificity requiredM85.52Aneurysmal bone cyst, upper armCategory · further specificity requiredM85.53Aneurysmal bone cyst, forearmCategory · further specificity requiredM85.54Aneurysmal bone cyst, handCategory · further specificity requiredM85.55Aneurysmal bone cyst, thighCategory · further specificity requiredM85.56Aneurysmal bone cyst, lower legCategory · further specificity requiredM85.57Aneurysmal bone cyst, ankle and footCategory · further specificity requiredM85.58Aneurysmal bone cyst, other siteBillable / specificM85.59Aneurysmal bone cyst, multiple sitesBillable / specificOther entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| M85.0 | Fibrous dysplasia (monostotic) | Category · further specificity required |
| M85.1 | Skeletal fluorosis | Category · further specificity required |
| M85.2 | Hyperostosis of skull | Billable / specific |
| M85.3 | Osteitis condensans | Category · further specificity required |
| M85.4 | Solitary bone cyst | Category · further specificity required |
| M85.6 | Other cyst of bone | Category · further specificity required |
| M85.8 | Other specified disorders of bone density and structure | Category · further specificity required |
| M85.9 | Disorder of bone density and structure, unspecified | Billable / specific |
Official titles and instructions are preserved in their source language. Official sources ↗