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ICD-10-CM · FY 2026 APRIL UPDATE

M46

Other inflammatory spondylopathies

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
M46.0Spinal enthesopathyCategory
M46.00Spinal enthesopathy, site unspecifiedBillable
M46.01Spinal enthesopathy, occipito-atlanto-axial regionBillable
M46.02Spinal enthesopathy, cervical regionBillable
M46.03Spinal enthesopathy, cervicothoracic regionBillable
M46.04Spinal enthesopathy, thoracic regionBillable
M46.05Spinal enthesopathy, thoracolumbar regionBillable
M46.06Spinal enthesopathy, lumbar regionBillable
M46.07Spinal enthesopathy, lumbosacral regionBillable
M46.08Spinal enthesopathy, sacral and sacrococcygeal regionBillable
M46.09Spinal enthesopathy, multiple sites in spineBillable
M46.1Sacroiliitis, not elsewhere classifiedBillable
M46.2Osteomyelitis of vertebraCategory
M46.20Osteomyelitis of vertebra, site unspecifiedBillable
M46.21Osteomyelitis of vertebra, occipito-atlanto-axial regionBillable
M46.22Osteomyelitis of vertebra, cervical regionBillable
M46.23Osteomyelitis of vertebra, cervicothoracic regionBillable
M46.24Osteomyelitis of vertebra, thoracic regionBillable
M46.25Osteomyelitis of vertebra, thoracolumbar regionBillable
M46.26Osteomyelitis of vertebra, lumbar regionBillable
M46.27Osteomyelitis of vertebra, lumbosacral regionBillable
M46.28Osteomyelitis of vertebra, sacral and sacrococcygeal regionBillable
M46.3Infection of intervertebral disc (pyogenic)Category
M46.30Infection of intervertebral disc (pyogenic), site unspecifiedBillable
M46.31Infection of intervertebral disc (pyogenic), occipito-atlanto-axial regionBillable
M46.32Infection of intervertebral disc (pyogenic), cervical regionBillable
M46.33Infection of intervertebral disc (pyogenic), cervicothoracic regionBillable
M46.34Infection of intervertebral disc (pyogenic), thoracic regionBillable
M46.35Infection of intervertebral disc (pyogenic), thoracolumbar regionBillable
M46.36Infection of intervertebral disc (pyogenic), lumbar regionBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.