M46.31 is the authoritative medical code for Infection of intervertebral disc pyogenic, occipito-atlanto-axial region. This classification is used in medical billing and clinical recording to specify the clinical criteria for infection of intervertebral disc pyogenic, occipito-atlanto-axial region (ICD-10-CM M46.31), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Infection of intervertebral disc pyogenic, occipito-atlanto-axial region is a billable ICD-10-CM diagnosis code M46.31. Use additional code: code B95-B97 to identify infectious agent..
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for M46.31 in the official ICD-10-CM tabular list.
Use Additional Code
Supplementary codes the tabular list directs you to add.
- code B95-B97 to identify infectious agent.
Frequently Asked Questions (FAQ) & Clinical Guidance
Is an additional code needed with M46.31?
Use additional code(s) to specify: code (B95-B97) to identify infectious agent..
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as M46.31, with their registry titles.
- M46 — Other inflammatory spondylopathies
- M46.0 — Spinal enthesopathy
- M46.00 — Spinal enthesopathy, site unspecified
- M46.01 — Spinal enthesopathy, occipito-atlanto-axial region
- M46.02 — Spinal enthesopathy, cervical region
- M46.03 — Spinal enthesopathy, cervicothoracic region
- M46.04 — Spinal enthesopathy, thoracic region
- M46.05 — Spinal enthesopathy, thoracolumbar region
- M46.06 — Spinal enthesopathy, lumbar region
- M46.07 — Spinal enthesopathy, lumbosacral region
- M46.08 — Spinal enthesopathy, sacral and sacrococcygeal region
- M46.09 — Spinal enthesopathy, multiple sites in spine
- M46.1 — Sacroiliitis, not elsewhere classified
- M46.2 — Osteomyelitis of vertebra
- M46.20 — Osteomyelitis of vertebra, site unspecified
- M46.21 — Osteomyelitis of vertebra, occipito-atlanto-axial region
- 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
- M46.3 — Infection of intervertebral disc (pyogenic)
- M46.30 — Infection of intervertebral disc (pyogenic), site unspecified
- M46.32 — Infection of intervertebral disc (pyogenic), cervical region
- M46.33 — Infection of intervertebral disc (pyogenic), cervicothoracic region
- M46.34 — Infection of intervertebral disc (pyogenic), thoracic region
- M46.35 — Infection of intervertebral disc (pyogenic), thoracolumbar region
- M46.36 — Infection of intervertebral disc (pyogenic), lumbar region
- M46.37 — Infection of intervertebral disc (pyogenic), lumbosacral region
- M46.38 — Infection of intervertebral disc (pyogenic), sacral and sacrococcygeal region
- M46.39 — Infection of intervertebral disc (pyogenic), multiple sites in spine
- M46.4 — Discitis, unspecified
- M46.40 — Discitis, unspecified, site unspecified
- M46.41 — Discitis, unspecified, occipito-atlanto-axial region
- M46.42 — Discitis, unspecified, cervical region
- M46.43 — Discitis, unspecified, cervicothoracic region
- M46.44 — Discitis, unspecified, thoracic region
- M46.45 — Discitis, unspecified, thoracolumbar region
Indexed Clinical Terms (1)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Infection, infected, infective (opportunistic), intervertebral disc, pyogenic, occipito-atlanto-axial region
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: