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M46.21 - Osteomyelitis of vertebra, occipito-atlanto-axial region


The ICD 10 Code for Osteomyelitis of vertebra, occipito-atlanto-axial region is listed as M46.21.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: M46.21
Description: Osteomyelitis of vertebra, occipito-atlanto-axial region
Diagnostic Related Groups
(MS-DRG v30.0)
456 - Spinal Fus Exc Cerv W Spinal Curv/malig/infec Or 9+ Fus W Mcc
457 - Spinal Fus Exc Cerv W Spinal Curv/malig/infec Or 9+ Fus W Cc
458 - Spinal Fus Exc Cerv W Spinal Curv/malig/infec Or 9+ Fus W/o Cc/mcc
539 - Osteomyelitis W Mcc
540 - Osteomyelitis W Cc
541 - Osteomyelitis W/o Cc/mcc
Chapter Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block Spondylopathies (M45-M49)
Parent M46.2 - Osteomyelitis of vertebra
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 730.28 - Unspecified osteomyelitis, other specified sites (approximate)
ICD-10-CM Siblings (same level / similar specificity) of M46.21:
M46.20 - Osteomyelitis of vertebra, site unspecified
M46.22 - Osteomyelitis of vertebra, cervical region
M46.23 - Osteomyelitis of vertebra, cervicothoracic region
M46.24 - Osteomyelitis of vertebra, thoracic region
M46.25 - Osteomyelitis of vertebra, thoracolumbar region
M46.26 - Osteomyelitis of vertebra, lumbar region
M46.27 - Osteomyelitis of vertebra, lumbosacral region
M46.28 - Osteomyelitis of vertebra, sacral and sacrococcygeal region