ICD-10-CM 2027
ICD-10 code for spondylosis
From the official ICD-10-CM alphabetic index entry “Spondylosis”. Page updated September 29, 2026.
About coding spondylosis
The ICD-10-CM code for spondylosis is M47.9 (Spondylosis, unspecified). The official index lists 37 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M47.9.
Within M47, choose M47.9 (unspecified) only when documentation doesn't support a more specific option: anterior spinal and vertebral artery compression syndromes (M47.0), other spondylosis with myelopathy (M47.1), other spondylosis with radiculopathy (M47.2) and other spondylosis (M47.8).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 551 (Medical Back Problems with MCC, relative weight 1.6358) and DRG 552 (Medical Back Problems without MCC, relative weight 0.9584), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific spondylosis codes (official index)
- with
- disproportion (fetopelvic) O33.0 — Maternal care for disproportion due to deformity of maternal pelvic bones
- causing obstructed labor O65.0 — Obstructed labor due to deformed pelvis
- myelopathy NEC M47.10 — Other spondylosis with myelopathy, site unspecified
- cervical region M47.12 — Other spondylosis with myelopathy, cervical region
- cervicothoracic region M47.13 — Other spondylosis with myelopathy, cervicothoracic region
- lumbar region M47.16 — Other spondylosis with myelopathy, lumbar region
- occipito-atlanto-axial region M47.11 — Other spondylosis with myelopathy, occipito-atlanto-axial region
- thoracic region M47.14 — Other spondylosis with myelopathy, thoracic region
- thoracolumbar region M47.15 — Other spondylosis with myelopathy, thoracolumbar region
- radiculopathy M47.20 — Other spondylosis with radiculopathy, site unspecified
- cervical region M47.22 — Other spondylosis with radiculopathy, cervical region
- cervicothoracic region M47.23 — Other spondylosis with radiculopathy, cervicothoracic region
- lumbar region M47.26 — Other spondylosis with radiculopathy, lumbar region
- lumbosacral region M47.27 — Other spondylosis with radiculopathy, lumbosacral region
- occipito-atlanto-axial region M47.21 — Other spondylosis with radiculopathy, occipito-atlanto-axial region
- sacrococcygeal region M47.28 — Other spondylosis with radiculopathy, sacral and sacrococcygeal region
- thoracic region M47.24 — Other spondylosis with radiculopathy, thoracic region
- thoracolumbar region M47.25 — Other spondylosis with radiculopathy, thoracolumbar region
- specified NEC M47.899 — Other spondylosis, site unspecified
- cervical region M47.892 — Other spondylosis, cervical region
- cervicothoracic region M47.893 — Other spondylosis, cervicothoracic region
- facet joint M47.819 — Spondylosis without myelopathy or radiculopathy, site unspecified
- lumbar region M47.896 — Other spondylosis, lumbar region
- lumbosacral region M47.897 — Other spondylosis, lumbosacral region
- occipito-atlanto-axial region M47.891 — Other spondylosis, occipito-atlanto-axial region
- sacrococcygeal region M47.898 — Other spondylosis, sacral and sacrococcygeal region
- thoracic region M47.894 — Other spondylosis, thoracic region
- thoracolumbar region M47.895 — Other spondylosis, thoracolumbar region
- traumatic
- without myelopathy or radiculopathy M47.819 — Spondylosis without myelopathy or radiculopathy, site unspecified
- cervical region M47.812 — Spondylosis without myelopathy or radiculopathy, cervical region
- cervicothoracic region M47.813 — Spondylosis without myelopathy or radiculopathy, cervicothoracic region
- lumbar region M47.816 — Spondylosis without myelopathy or radiculopathy, lumbar region
- lumbosacral region M47.817 — Spondylosis without myelopathy or radiculopathy, lumbosacral region
- occipito-atlanto-axial region M47.811 — Spondylosis without myelopathy or radiculopathy, occipito-atlanto-axial region
- sacrococcygeal region M47.818 — Spondylosis without myelopathy or radiculopathy, sacral and sacrococcygeal region
- thoracic region M47.814 — Spondylosis without myelopathy or radiculopathy, thoracic region
- thoracolumbar region M47.815 — Spondylosis without myelopathy or radiculopathy, thoracolumbar region
Common questions about spondylosis ICD-10 codes
What is the ICD-10 code for spondylosis?
- M47.9 — Spondylosis, unspecified. More specific codes apply when the documentation supports them: O33.0, O65.0, M47.10, M47.12 and others below.
Is M47.9 billable?
- Yes. M47.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M47.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M47.9 as a principal diagnosis.
Is M47.9 a CC or MCC?
- No. M47.9 is neither a CC nor an MCC under MS-DRG v44.0.