M66
Non-billableSpontaneous rupture of synovium and tendon
Spontaneous rupture of synovium and tendon
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- rupture that occurs when a normal force is applied to tissues that are inferred to have less than normal strength
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
- •rotator cuff syndromeM75.1
- rupture where an abnormal force is applied to normal tissue - see injury of tendon by body region
Child 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(2)
Frequently Asked Questions
What is the ICD-10 code for spontaneous rupture of synovium and tendon?
The ICD-10-CM code for spontaneous rupture of synovium and tendon is M66. The full clinical description is "Spontaneous rupture of synovium and tendon". M66 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code M66 mean?
ICD-10-CM code M66 represents “Spontaneous rupture of synovium and tendon”. 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 M66 a billable code?
No, M66 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 6 child codes under M66.
What chapter is M66 in?
M66 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What are the subcategories under M66?
M66 has 6 child codes, including: M66.0 (Rupture of popliteal cyst), M66.1 (Rupture of synovium), M66.2 (Spontaneous rupture of extensor tendons), M66.3 (Spontaneous rupture of flexor tendons), and 2 more.
What are the UMLS CUIs for M66?
M66 is linked to 2 UMLS Concept Unique Identifiers: C0494975, C4290231. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M66 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like spontaneous rupture of synovium and tendon 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 M66?
M66 maps to the ICD-11 code: FB41.Z (Spontaneous rupture of synovium or tendon, 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.