M99 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Biomechanical lesions, not elsewhere classified.
Notes
- This category should not be used if the condition can be classified elsewhere. 
Codes
- M99.0- Segmental and somatic dysfunction 
- M99.1- Subluxation complex (vertebral) 
- M99.2- Subluxation stenosis of neural canal 
- M99.3- Osseous stenosis of neural canal 
- M99.4- Connective tissue stenosis of neural canal 
- M99.5- Intervertebral disc stenosis of neural canal 
- M99.6- Osseous and subluxation stenosis of intervertebral foramina 
- M99.7- Connective tissue and disc stenosis of intervertebral foramina 
- M99.8- Other biomechanical lesions 
- M99.9- Biomechanical lesion, unspecified 
Versions
- 2025- No changes 
- 2024- No changes 
- 2023- No changes 
- 2022- No changes 
- 2021- No changes 
- 2020- No changes 
- 2019- No changes 
- 2018- No changes 
- 2017- No changes 
- 2016- New code