Hyperostosis of skull
Billable / specific
M85.2 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.
Inclusion terms
Includes (from M85)
- Note: Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Excludes1
Not coded here — never report together with this code.
Excludes2
Not included here — may be reported together when both conditions exist.
- arthropathic psoriasis (L40.5-) (from M85)
- certain conditions originating in the perinatal period (P04-P96) (from M85)
- certain infectious and parasitic diseases (A00-B99) (from M85)
- compartment syndrome (traumatic) (T79.A-) (from M85)
- complications of pregnancy, childbirth and the puerperium (O00-O9A) (from M85)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from M85)
- endocrine, nutritional and metabolic diseases (E00-E88) (from M85)
- injury, poisoning and certain other consequences of external causes (S00-T88) (from M85)
- neoplasms (C00-D49) (from M85)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from M85)
Also known as
- Buchem's syndrome
- Craniopathy, metabolic
- Disease, diseased, Morgagni's
- Disorder, bone, density and structure, hyperostosis of skull
- Hyperostosis, cortical
- Hyperostosis, frontal, internal of skull
- Hyperostosis, interna frontalis
- Hyperostosis, skull
- Leontiasis, ossium
- Morelsyndrome
- Morel-Moore syndrome
- Morgagni's, syndrome
- Morgagni-Stewart-Morel syndrome
- Stewart-Morel syndrome
- Syndrome, Buchem's
Parent code
- M85Other disorders of bone density and structureHeader
Related codes
- M85.0Fibrous dysplasia (monostotic)Header
- M85.1Skeletal fluorosisHeader
- M85.3Osteitis condensansHeader
- M85.4Solitary bone cystHeader
- M85.5Aneurysmal bone cystHeader
- M85.6Other cyst of boneHeader
- M85.8Other specified disorders of bone density and structureHeader
- M85.9Disorder of bone density and structure, unspecifiedBillable