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ICD-10 diagnosis code

M84.1 Nonunion of fracture [pseudarthrosis]

This page in Swedish

M84.1 is the ICD-10 code for Nonunion of fracture [pseudarthrosis]. It is a four-character subcategory of M84 (Disorders of continuity of bone), 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 M84.1 excludes

Conditions that look similar but belong under another code.

  • pseudarthrosis after fusion or arthrodesis M96.0

M84.1 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

M84.1Utebliven frakturläkning

  • M84.1AUtebliven läkning/pseudartros i halsryggen
  • M84.1BUtebliven läkning/pseudartros i axelled/överarm
  • M84.1CUtebliven läkning/pseudartros i armbåge/underarm
  • M84.1DUtebliven läkning/pseudartros i handled/hand
  • M84.1EUtebliven läkning/pseudartros i bäckenet
  • M84.1FUtebliven läkning/pseudartros i höftled/lårben
  • M84.1GUtebliven läkning/pseudartros i knäled/underben
  • M84.1HUtebliven läkning/pseudartros i fotled/fot
  • and 2 more national subcodes
NorwayICD-10-NO

M84.1Forstyrret bruddtilheling

  • M84.10Forstyrret bruddtilheling i flere lokalisasjoner
  • M84.11Forstyrret bruddtilheling i skulderregionen
  • M84.12Forstyrret bruddtilheling i overarm eller albueledd
  • M84.13Forstyrret bruddtilheling i underarm eller håndledd
  • M84.14Forstyrret bruddtilheling i hånd
  • M84.15Forstyrret bruddtilheling i bekkenregion eller lår
  • M84.16Forstyrret bruddtilheling i kneledd eller legg
  • M84.17Forstyrret bruddtilheling i ankel eller fot
  • and 2 more national subcodes
DenmarkICD-10-DK

DM841Pseudartrose

FinlandICD-10-FI

M84.1Murtuman luutumattomuus

GermanyICD-10-GM

M84.1Nichtvereinigung der Frakturenden [Pseudarthrose]

FranceICD-10-FR

M84.1Fracture non consolidée [pseudarthrose]

NetherlandsICD-10-NL

M84.1niet aaneengroeien van fractuur [pseudoartrose]

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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