M99
Non-billableBiomechanical lesions, not elsewhere classified
Biomechanical lesions, not elsewhere classified
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
- •arthropathic psoriasisL40.5
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •compartment syndrome (traumatic)A-)T79
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
Child Codes (10)
M99.0Segmental and somatic dysfunction
M99.1Subluxation complex (vertebral)
M99.2Subluxation stenosis of neural canal
M99.3Osseous stenosis of neural canal
M99.4Connective tissue stenosis of neural canal
M99.5Intervertebral disc stenosis of neural canal
M99.6Osseous and subluxation stenosis of intervertebral foramina
M99.7Connective tiss and disc stenosis of intervertebral foramina
M99.8Other biomechanical lesions
M99.9Biomechanical lesion, unspecified
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(2)
Frequently Asked Questions
What is the ICD-10 code for biomechanical lesions, not elsewhere classified?
The ICD-10-CM code for biomechanical lesions, not elsewhere classified is M99. The full clinical description is "Biomechanical lesions, not elsewhere classified". M99 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code M99 mean?
ICD-10-CM code M99 represents “Biomechanical lesions, not elsewhere classified”. It is classified under Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue and is a non-billable header code. Use a more specific child code for billing purposes.
Is M99 a billable code?
No, M99 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 10 child codes under M99.
What chapter is M99 in?
M99 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What are the subcategories under M99?
M99 has 10 child codes, including: 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), and 6 more.
What are the UMLS CUIs for M99?
M99 is linked to 1 UMLS Concept Unique Identifier: C0868884. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M99 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like biomechanical lesions, not elsewhere classified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of M99?
M99 maps to the ICD-11 code: ME93.Z (Biomechanical lesions, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.