M85.4
Non-billableSolitary bone cyst
Solitary bone cyst
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
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
- •solitary cyst of jawM27.4
Child Codes (9)
M85.40Solitary bone cyst, unspecified site
M85.41Solitary bone cyst, shoulder
M85.42Solitary bone cyst, humerus
M85.43Solitary bone cyst, ulna and radius
M85.44Solitary bone cyst, hand
M85.45Solitary bone cyst, pelvis
M85.46Solitary bone cyst, tibia and fibula
M85.47Solitary bone cyst, ankle and foot
M85.48Solitary bone cyst, other site
Related Codes(8)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(28)
UMLS
- Bone CystC0005937
- Bone CystsC0005937
- Bone cystC0005937
- Bone cyst (disorder)C0005937
- Bone cyst (morphologic abnormality)C0005937
- Bone cyst NOSC0005937
- Bone cystsC0005937
- Cyst of boneC0005937
- Cyst of bone (localized), unspecifiedC0005937
- Cyst, BoneC0005937
- Cyst, SolitaryC0005937
- Cysts, BoneC0005937
- Cysts, SolitaryC0005937
- Hemorrhagic Bone CystC0005937
- Local cyst of boneC0005937
- SBCC0005937
- Simple Bone CystC0005937
- Simple bone cystC0005937
- Solitary Bone CystC0005937
- Solitary CystC0005937
- Solitary CystsC0005937
- Solitary bone cystC0005937
- Solitary bone cyst (disorder)C0005937
- Solitary bone cyst, unspecified siteC0005937
- bone cystC0005937
- bone cystsC0005937
- cyst of boneC0005937
- solitary bone cystC0005937
Frequently Asked Questions
What is the ICD-10 code for solitary bone cyst?
The ICD-10-CM code for solitary bone cyst is M85.4. The full clinical description is "Solitary bone cyst". M85.4 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code M85.4 mean?
ICD-10-CM code M85.4 represents “Solitary bone cyst”. 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 M85.4 a billable code?
No, M85.4 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 9 child codes under M85.4.
What chapter is M85.4 in?
M85.4 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M85.4?
M85.4 has Excludes1 notes indicating codes that cannot be used together with it, including: osteogenesis imperfecta (Q78.0); osteopetrosis (Q78.2); osteopoikilosis (Q78.8); and 1 more.
What are the subcategories under M85.4?
M85.4 has 9 child codes, including: M85.40 (Solitary bone cyst, unspecified site), M85.41 (Solitary bone cyst, shoulder), M85.42 (Solitary bone cyst, humerus), M85.43 (Solitary bone cyst, ulna and radius), and 5 more.
What are the UMLS CUIs for M85.4?
M85.4 is linked to 1 UMLS Concept Unique Identifier: C0005937. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M85.4 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like solitary bone cyst 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 M85.4?
M85.4 maps to the ICD-11 code: FB80.5 (Solitary bone cyst).
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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.