M47.021 – Vertebral artery compression syndromes, occipito-atlanto-axial region
ICD-10-CM 2027 diagnosis code · Spondylopathies
ICD-10-CM code
M47.021
- Code
M47.021(claims format:M47021)- Description
- Vertebral artery compression syndromes, occipito-atlanto-axial region
- Short description
- Verteb art compression syndromes, occipt-atlan-ax region
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
- Block
- M45-M49 Spondylopathies
- Parent codes
- M47 › M47.0 › M47.02
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
M47 – Spondylosis
Includes:
- arthrosis or osteoarthritis of spine
- degeneration of facet joints
Index terms for M47.021
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in M47.02
Frequently asked questions
What is ICD-10 code M47.021?
M47.021 is the ICD-10-CM code for vertebral artery compression syndromes, occipito-atlanto-axial region, in the block M45-M49 (Spondylopathies).
Is M47.021 a billable code?
Yes. M47.021 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does M47.021 belong to?
It belongs to category M47 – Spondylosis.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.