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M51.A4

✓ Billable

Intervertebral annulus fibrosus defect, small, lumbosacral region

Diseases of the musculoskeletal system and connective tissue (M00-M99)

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📋 Code Instructions

  • • Code first: , if applicable, lumbosacral disc herniation (M51.17, M51.27)

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Code Information

CodeM51.A4
BillableYes
ParentM51.A
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes10 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)