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ICD-10 diagnosis code

M85.4 Solitary bone cyst

This page in Swedish

M85.4 is the ICD-10 code for Solitary bone cyst. It is a four-character subcategory of M85 (Other disorders of bone density and structure), the most specific level in the WHO edition. It belongs to the block M80–M85 (Disorders of bone density and structure) in Chapter XIII, Diseases of the musculoskeletal system and connective tissue.

Code type
Subcategory (4 characters)
Chapter
XIII · M00–M99
Classification
WHO ICD-10, 2019 version

What M85.4 excludes

Conditions that look similar but belong under another code.

M85.4 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

M85.4Solitär bencysta

  • M85.4BSolitär bencysta i axelled/överarm
  • M85.4CSolitär bencysta i armbåge/underarm
  • M85.4DSolitär bencysta i handled/hand
  • M85.4ESolitär bencysta i bäckenet
  • M85.4FSolitär bencysta i höftled/lårben
  • M85.4GSolitär bencysta i knäled/underben
  • M85.4HSolitär bencysta i fotled/fot
NorwayICD-10-NO

M85.4Solitær bencyste

  • M85.40Solitær bencyste i flere lokalisasjoner
  • M85.41Solitær bencyste i skulderregionen
  • M85.42Solitær bencyste i overarm
  • M85.43Solitær bencyste i underarm
  • M85.44Solitær bencyste i hånd
  • M85.45Solitær bencyste i bekkenregion eller lår
  • M85.46Solitær bencyste i kne eller legg
  • M85.47Solitær bencyste i ankel eller fot
  • and 2 more national subcodes
DenmarkICD-10-DK

DM854Solitær knoglecyste

FinlandICD-10-FI

M85.4Yksittäinen luukysta

GermanyICD-10-GM

M85.4Solitäre Knochenzyste

FranceICD-10-FR

M85.4Kyste solitaire des os

NetherlandsICD-10-NL

M85.4solitaire botcyste

United StatesICD-10-CM

Listed through more specific codes:

  • M85.40Solitary bone cyst, unspecified site
  • M85.48Solitary bone cyst, other site

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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