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ICD-10-CM 2027

ICD-10 code for fibrous dysplasia

Choose a code from the options below based on the documentation.

From the official ICD-10-CM alphabetic index entry “Dysplasia › fibrous”. Page updated September 29, 2026.

About coding fibrous dysplasia

The official ICD-10-CM index doesn't give a single default code for fibrous dysplasia; the code depends on the details below.

More specific fibrous dysplasia codes (official index)

  • bone NEC (monostotic) M85.00 — Fibrous dysplasia (monostotic), unspecified site
  • ankle M85.07 — Fibrous dysplasia (monostotic), ankle and foot
  • foot M85.07 — Fibrous dysplasia (monostotic), ankle and foot
  • forearm M85.03 — Fibrous dysplasia (monostotic), forearm
  • hand M85.04 — Fibrous dysplasia (monostotic), hand
  • lower leg M85.06 — Fibrous dysplasia (monostotic), lower leg
  • multiple site M85.09 — Fibrous dysplasia (monostotic), multiple sites
  • neck M85.08 — Fibrous dysplasia (monostotic), other site
  • rib M85.08 — Fibrous dysplasia (monostotic), other site
  • shoulder M85.01 — Fibrous dysplasia (monostotic), shoulder
  • skull M85.08 — Fibrous dysplasia (monostotic), other site
  • specified site NEC M85.08 — Fibrous dysplasia (monostotic), other site
  • thigh M85.05 — Fibrous dysplasia (monostotic), thigh
  • toe M85.07 — Fibrous dysplasia (monostotic), ankle and foot
  • upper arm M85.02 — Fibrous dysplasia (monostotic), upper arm
  • vertebra M85.08 — Fibrous dysplasia (monostotic), other site
  • diaphyseal, progressive Q78.3 — Progressive diaphyseal dysplasia
  • jaw M27.8 — Other specified diseases of jaws
  • polyostotic Q78.1 — Polyostotic fibrous dysplasia

Common questions about fibrous dysplasia ICD-10 codes

What is the ICD-10 code for bone nec fibrous dysplasia?

M85.00 — Fibrous dysplasia (monostotic), unspecified site.

What is the ICD-10 code for jaw fibrous dysplasia?

M27.8 — Other specified diseases of jaws.

What is the ICD-10 code for polyostotic fibrous dysplasia?

Q78.1 — Polyostotic fibrous dysplasia.