Effective from
- First observed
Ankylosing spondylitis
Category — select a more specific code
CDC/NCHS · FY2016Behçet's disease (M35.2)
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
Ankylosing spondylitis
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 |
Rheumatoid arthritis of spine
Behçet's disease (M35.2)
Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
M45.0Ankylosing spondylitis of multiple sites in spineBillable / specificM45.1Ankylosing spondylitis of occipito-atlanto-axial regionBillable / specificM45.2Ankylosing spondylitis of cervical regionBillable / specificM45.3Ankylosing spondylitis of cervicothoracic regionBillable / specificM45.4Ankylosing spondylitis of thoracic regionBillable / specificM45.5Ankylosing spondylitis of thoracolumbar regionBillable / specificM45.6Ankylosing spondylitis lumbar regionBillable / specificM45.7Ankylosing spondylitis of lumbosacral regionBillable / specificM45.8Ankylosing spondylitis sacral and sacrococcygeal regionBillable / specificM45.9Ankylosing spondylitis of unspecified sites in spineBillable / specificM45.ANon-radiographic axial spondyloarthritisCategory · further specificity requiredOfficial titles and instructions are preserved in their source language. Official sources ↗