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M85.53

M85.53: Aneurysmal bone cyst, forearm

Non-billable headerICD-10-CM

M85.53 is a non-billable header ICD-10-CM code for aneurysmal bone cyst, forearm. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 inherited from the categories above M85.53

A category’s note binds every code beneath it.

Written on M85: Other disorders of bone density and structure

  • osteogenesis imperfecta (Q78.0)
  • osteopetrosis (Q78.2)
  • osteopoikilosis (Q78.8)
  • polyostotic fibrous dysplasia (Q78.1)

Excludes2 inherited from the categories above M85.53

Not part of this code, but both may be coded when both are present.

Written on M85.5: Aneurysmal bone cyst

  • aneurysmal cyst of jaw (M27.4)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead M85.53

3 child codes. Green means billable.

Other codes under M85.5

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.