M48.1
⚠ Non-billable (Header)Ankylosing hyperostosis [Forestier]
Diseases of the musculoskeletal system and connective tissue (M00-M99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
Also Known As
Diffuse idiopathic skeletal hyperostosis [DISH]
✅ No additional coding notes for M48.1
Child Codes (10)
M48.10Ankylosing hyperostosis [Forestier], site unspecifiedM48.11Ankylosing hyperostosis [Forestier], occipito-atlanto-axial regionM48.12Ankylosing hyperostosis [Forestier], cervical regionM48.13Ankylosing hyperostosis [Forestier], cervicothoracic regionM48.14Ankylosing hyperostosis [Forestier], thoracic regionM48.15Ankylosing hyperostosis [Forestier], thoracolumbar regionM48.16Ankylosing hyperostosis [Forestier], lumbar regionM48.17Ankylosing hyperostosis [Forestier], lumbosacral regionM48.18Ankylosing hyperostosis [Forestier], sacral and sacrococcygeal regionM48.19Ankylosing hyperostosis [Forestier], multiple sites in spine
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CodeM48.1
BillableNo — Header code
ParentM48
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes10
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)