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ICD-10 diagnosis code

M66.3 Spontaneous rupture of flexor tendons

This page in Swedish

M66.3 is the ICD-10 code for Spontaneous rupture of flexor tendons. It is a four-character subcategory of M66 (Spontaneous rupture of synovium and tendon), the most specific level in the WHO edition. It belongs to the block M65–M68 (Disorders of synovium and tendon) 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

M66.3 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

M66.3Spontanruptur av böjarsenor

  • M66.3BSpontanruptur böjsena (biceps) i axelled/överarm
  • M66.3CSpontanruptur böjsena i armbåge/underarm
  • M66.3DSpontanruptur böjsena i handled/hand
  • M66.3FSpontanruptur böjsena i höftled/lårben
  • M66.3GSpontanruptur böjsena i knäled/underben
  • M66.3HSpontanruptur böjsena i fotled/fot
NorwayICD-10-NO

M66.3Spontan ruptur i bøyemuskelsene

  • M66.30Spontan ruptur i bøyemuskelsene i flere lokalisasjoner
  • M66.31Spontan ruptur i bøyemuskelsene i skulderregionen
  • M66.32Spontan ruptur i bøyemuskelsene i overarm
  • M66.33Spontan ruptur i bøyemuskelsene i underarm
  • M66.34Spontan ruptur i bøyemuskelsene i hånd
  • M66.35Spontan ruptur i bøyemuskelsene i bekkenregion eller lår
  • M66.36Spontan ruptur i bøyemuskelsene i legg
  • M66.37Spontan ruptur i bøyemuskelsene i ankel eller fot
  • and 2 more national subcodes
DenmarkICD-10-DK

DM663Spontan fleksorseneruptur

FinlandICD-10-FI

M66.3Koukistajajänteiden spontaanirepeytymä

GermanyICD-10-GM

M66.3Spontanruptur von Beugesehnen

FranceICD-10-FR

M66.3Déchirure spontanée des tendons fléchisseurs

NetherlandsICD-10-NL

M66.3spontane-ruptuur van flexorpezen

United StatesICD-10-CM

Listed through more specific codes:

  • M66.30Spontaneous rupture of flexor tendons, unspecified site
  • M66.38Spontaneous rupture of flexor tendons, other site
  • M66.39Spontaneous rupture of flexor tendons, multiple sites

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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