The block M40–M43 of ICD-10 is titled “Deforming dorsopathies”. It is part of Chapter XIII, Diseases of the musculoskeletal system and connective tissue, and holds 4 groups.
Codes in M40–M43
- M43.0Spondylolysis
- M43.1Spondylolisthesis
- M43.2Other fusion of spine
- M43.3Recurrent atlantoaxial subluxation with myelopathy
- M43.4Other recurrent atlantoaxial subluxation
- M43.5Other recurrent vertebral subluxation
- M43.6Torticollis
- M43.8Other specified deforming dorsopathies
- M43.9Deforming dorsopathy, unspecified
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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