M43Header code — not billable
Other deforming dorsopathies
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue
- Category
- M43
- Effective date
- October 1, 2026
Related codes in category M43
M43.0SpondylolysisM43.00Spondylolysis, site unspecifiedYesM43.01Spondylolysis, occipito-atlanto-axial regionYesM43.02Spondylolysis, cervical regionYesM43.03Spondylolysis, cervicothoracic regionYesM43.04Spondylolysis, thoracic regionYesM43.05Spondylolysis, thoracolumbar regionYesM43.06Spondylolysis, lumbar regionYesM43.07Spondylolysis, lumbosacral regionYesM43.08Spondylolysis, sacral and sacrococcygeal regionYesM43.09Spondylolysis, multiple sites in spineYesM43.1Spondylolisthesis
Frequently asked questions
What is ICD-10 code M43?
M43 is an ICD-10-CM diagnosis code for Other deforming dorsopathies.
Is M43 a billable code?
No. M43 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is M43 in?
M43 falls under Chapter 13: Diseases of the musculoskeletal system and connective tissue.
When did M43 become effective?
M43 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to M43?
M43 belongs to category M43, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.