M46.04 Spinal enthesopathy, thoracic region

Billable ICD-10-CM code, FY2026.

Applies from M46.0 Spinal enthesopathy

Applicable to

• Disorder of ligamentous or muscular attachments of spine

Risk adjustment (HCC)

• CMS-HCC V22: HCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease
• ESRD V24: HCC 40

MS-DRG index

Defines the logic of DRG(s) 551-552 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 720.1 Spinal enthesopathy (approximate)

Code annotations containing back-references to M46.04

Back-references to M46.0

• Type 2 Excludes: M77 Other enthesopathies ("spinal enthesopathy (M46.0-)")

Back-references to M46

• Type 1 Excludes: G55 Nerve root and plexus compressions in diseases classified elsewhere ("nerve root compression (due to) (in) spondylopathies (M46.-, M48.-)")

Diagnosis Index entries for M46.04

• Enthesopathy (peripheral) › spinal › thoracic region

Nearby codes

• 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 (this code)
• 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