M99
Header — not billableBiomechanical lesions, not elsewhere classified
The ICD-10 code for biomechanical lesions, not elsewhere classified is M99.
M99 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 10 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under M99
- M99.0Segmental and somatic dysfunctionnon-billable header
- M99.1Subluxation complex (vertebral)non-billable header
- M99.2Subluxation stenosis of neural canalnon-billable header
- M99.3Osseous stenosis of neural canalnon-billable header
- M99.4Connective tissue stenosis of neural canalnon-billable header
- M99.5Intervertebral disc stenosis of neural canalnon-billable header
- M99.6Osseous and subluxation stenosis of intervertebral foraminanon-billable header
- M99.7Connective tissue and disc stenosis of intervertebral foraminanon-billable header
- M99.8Other biomechanical lesionsnon-billable header
- M99.9Biomechanical lesion, unspecified