M99
ICD-10Non-billable categoryBiomechanical lesions, not elsewhere classified
Official ICD-10-CM descriptor (FY2026)
Biomechanical lesions, not elsewhere classified
M99 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Notes
- This category should not be used if the condition can be classified elsewhere.
More specific codes under M99
- M99.0Segmental and somatic dysfunctioncategory
- M99.1Subluxation complex (vertebral)category
- M99.2Subluxation stenosis of neural canalcategory
- M99.3Osseous stenosis of neural canalcategory
- M99.4Connective tissue stenosis of neural canalcategory
- M99.5Intervertebral disc stenosis of neural canalcategory
- M99.6Osseous and subluxation stenosis of intervertebral foraminacategory
- M99.7Connective tiss and disc stenosis of intervertebral foraminacategory
- M99.8Other biomechanical lesionscategory
- M99.9Biomechanical lesion, unspecified
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.