ICD-10-CM
ICD-10 code for Discitis: M46.40
The ICD-10-CM index points "Discitis" to M46.4 (Discitis, unspecified), a header that is not billable. When nothing more specific is documented, the billable code is M46.40, Discitis, unspecified, site unspecified.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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Index subterms
A header groups codes and is not billed. A billable code is one you can report.
- M46.42cervical region, Discitis, unspecified, cervical regionBillable
- M46.43cervicothoracic region, Discitis, unspecified, cervicothoracic regionBillable
- M46.46lumbar region, Discitis, unspecified, lumbar regionBillable
- M46.47lumbosacral region, Discitis, unspecified, lumbosacral regionBillable
- M46.49multiple sites, Discitis, unspecified, multiple sites in spineBillable
- M46.41occipito-atlanto-axial region, Discitis, unspecified, occipito-atlanto-axial regionBillable
- M46.48sacrococcygeal region, Discitis, unspecified, sacral and sacrococcygeal regionBillable
- M46.44thoracic region, Discitis, unspecified, thoracic regionBillable
- M46.45thoracolumbar region, Discitis, unspecified, thoracolumbar regionBillable
More specific codes in M46
A header groups codes and is not billed. A billable code is one you can report.
- M46Other inflammatory spondylopathiesHeader
- M46.0Spinal enthesopathyHeader
- 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 vertebraHeader
- 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)Header
- 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
- M46.37Infection of intervertebral disc (pyogenic), lumbosacral regionBillable
- M46.38Infection of intervertebral disc (pyogenic), sacral and sacrococcygeal regionBillable
- M46.39Infection of intervertebral disc (pyogenic), multiple sites in spineBillable
- M46.4Discitis, unspecifiedHeader
- M46.40Discitis, unspecified, site unspecifiedBillable
- M46.41Discitis, unspecified, occipito-atlanto-axial regionBillable
- M46.42Discitis, unspecified, cervical regionBillable
- M46.43Discitis, unspecified, cervicothoracic regionBillable
- M46.44Discitis, unspecified, thoracic regionBillable
- M46.45Discitis, unspecified, thoracolumbar regionBillable
- M46.46Discitis, unspecified, lumbar regionBillable
- M46.47Discitis, unspecified, lumbosacral regionBillable
- M46.48Discitis, unspecified, sacral and sacrococcygeal regionBillable
- M46.49Discitis, unspecified, multiple sites in spineBillable
- M46.5Other infective spondylopathiesHeader
- M46.50Other infective spondylopathies, site unspecifiedBillable
- M46.51Other infective spondylopathies, occipito-atlanto-axial regionBillable
- M46.52Other infective spondylopathies, cervical regionBillable
- M46.53Other infective spondylopathies, cervicothoracic regionBillable
- M46.54Other infective spondylopathies, thoracic regionBillable
- M46.55Other infective spondylopathies, thoracolumbar regionBillable
- M46.56Other infective spondylopathies, lumbar regionBillable
- M46.57Other infective spondylopathies, lumbosacral regionBillable
- M46.58Other infective spondylopathies, sacral and sacrococcygeal regionBillable
- M46.59Other infective spondylopathies, multiple sites in spineBillable
- M46.8Other specified inflammatory spondylopathiesHeader
- M46.80Other specified inflammatory spondylopathies, site unspecifiedBillable
- M46.81Other specified inflammatory spondylopathies, occipito-atlanto-axial regionBillable
- M46.82Other specified inflammatory spondylopathies, cervical regionBillable
Related conditions
Related pages
- M46.40 code detailsNotes, nearby codes, CMS-HCC group
- Category M46.4Every code under it
- Chapter 13Diseases of the musculoskeletal system
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Discitis?
The ICD-10-CM index points "Discitis" to M46.4 (Discitis, unspecified), a header that is not billable. When nothing more specific is documented, the billable code is M46.40, Discitis, unspecified, site unspecified.
Is M46.40 billable?
Yes. M46.40 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What chapter is M46.40 in?
Chapter 13. Diseases of the musculoskeletal system.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.