Chapter XIII of 22
Diseases of the musculoskeletal system and connective tissue
Codes M00–M99Category range as published by CMS
Search within ICD-10-CM — results across the whole code set will include categories M00–M99 from this chapter.
About this chapter
ICD-10-CM Chapter XIII — “Diseases of the musculoskeletal system and connective tissue” — spans every category from M00 through M99. Each category in that range expands into a header code and one or more billable codes with additional specificity (laterality, episode of care, or clinical detail). Open any code’s own page to see its exact position in the hierarchy, its parent and children, and whether it’s billable.