M85.2
BillableHyperostosis of skull
Hyperostosis of skull
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
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(43)
SNOMED CT
- Leonine facies11535009
- Large head12138000
- Large skull12138000
- Skull enlargement12138000
- Leonine bones16442005
- Leontiasis ossea16442005
- Leontiasis ossium16442005
- Leonine facies due to leprosy77746001
- Leontiasis77746001
- Leontiasis due to leprosy77746001
- Hyperostosis interna frontalis82054006
- Stewart-Morel-Morgagni syndrome782167001
- Hyperostosis of skull788954009
UMLS
- Hyperossification of skullC0020496
- Hyperostosis of SkullC0020496
- Hyperostosis of skullC0020496
- Hyperostosis of skull (finding)C0020496
- Hyperostosis of the skullC0020496
- Increased skull ossificationC0020496
- Sclerosis of bones of skullC0020496
- Sclerosis of skullC0020496
- Skull hyperostosisC0020496
- Skull sclerosisC0020496
Clinical Terms
- Increased skull ossification
- Leontiasis
- Skull sclerosis
- Large skull
- Hyperostosis interna frontalis
- Sclerosis of skull
- Leonine bones
- Leontiasis ossea
- Large head
- Stewart-Morel-Morgagni syndrome
- Leonine facies
- Hyperostosis of the skull
- Leontiasis due to leprosy
- Hyperostosis of skull (finding)
- Skull hyperostosis
- Hyperossification of skull
- Leontiasis ossium
- Leonine facies due to leprosy
- Skull enlargement
- Sclerosis of bones of skull
Frequently Asked Questions
What is the ICD-10 code for hyperostosis of skull?
The ICD-10-CM code for hyperostosis of skull is M85.2. The full clinical description is "Hyperostosis of skull". M85.2 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code M85.2 mean?
ICD-10-CM code M85.2 represents “Hyperostosis of skull”. It is classified under Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue and is a billable/specific code that can be used on a claim.
Is M85.2 a billable code?
Yes, M85.2 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is M85.2 in?
M85.2 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M85.2?
M85.2 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 SNOMED CT codes does M85.2 map to?
M85.2 maps to 7 SNOMED CT concepts: 82054006, 788954009, 12138000, 16442005, 11535009, and 2 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for M85.2?
M85.2 is linked to 1 UMLS Concept Unique Identifier: C0020496. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M85.2 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like hyperostosis of skull 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 M85.2?
M85.2 maps to the ICD-11 code: FB80.3 (Hyperostosis of skull).
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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.