M22.9
Non-billableUnspecified disorder of patella
Unspecified disorder of patella
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
- •joints of the spineM40-M54
- •traumatic dislocation of patellaS83.0
Child Codes (3)
Related Codes(6)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(6)
Frequently Asked Questions
What is the ICD-10 code for unspecified disorder of patella?
The ICD-10-CM code for unspecified disorder of patella is M22.9. The full clinical description is "Unspecified disorder of patella". M22.9 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code M22.9 mean?
ICD-10-CM code M22.9 represents “Unspecified disorder of patella”. 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 M22.9 a billable code?
No, M22.9 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under M22.9.
What chapter is M22.9 in?
M22.9 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What are the subcategories under M22.9?
M22.9 has 3 child codes, including: M22.90 (Unspecified disorder of patella, unspecified knee), M22.91 (Unspecified disorder of patella, right knee), M22.92 (Unspecified disorder of patella, left knee).
What are the UMLS CUIs for M22.9?
M22.9 is linked to 1 UMLS Concept Unique Identifier: C0477582. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M22.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like unspecified disorder of patella 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 M22.9?
M22.9 maps to the ICD-11 code: FA32.Z (Disorders of patella, 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.