M46.21 - Osteomyelitis of vertebra, occipito-atlanto-axial region
- Applicable to Osteomyelitis of vertebra, occipito-atlanto-axial region
- The 2025 edition of ICD10-CM M46.21 became effective on October 1, 2024.
- This is the American ICD10-CM version of M46.21 - other international versions of ICD10 M46.21 may differ.
- M46.21 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The following codes above M46.21 contain annotation back-references that may be applicable to M46.21:
Chapter: M00-M99 Diseases of the musculoskeletal system and connective tissue
Section: M45-M49 Spondylopathies
Category: M46 Other inflammatory spondylopathies
Billable/Specific Code
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Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
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