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ICD-10 diagnosis code

Q74.1 Congenital malformation of knee

This page in Swedish

Q74.1 is the ICD-10 code for Congenital malformation of knee. It is a four-character subcategory of Q74 (Other congenital malformations of limb(s)), the most specific level in the WHO edition. It belongs to the block Q65–Q79 (Congenital malformations and deformations of the musculoskeletal system) in Chapter XVII, Congenital malformations, deformations and chromosomal abnormalities.

Code type
Subcategory (4 characters)
Chapter
XVII · Q00–Q99
Classification
WHO ICD-10, 2019 version

What Q74.1 includes

Conditions and terms that are coded here.

  • Congenital:
    • absence of patella
    • dislocation of patella
    • genu: valgum
    • genu: varum
  • Rudimentary patella

What Q74.1 excludes

Conditions that look similar but belong under another code.

  • congenital:
  • nail patella syndrome Q87.2

Q74.1 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

Q74.1Medfödd missbildning av knä

  • Q74.1AGenu valgum, medfödd
  • Q74.1BGenu varum, medfödd
  • Q74.1CPatellarmissbildning
  • Q74.1XKnämissbildning UNS
NorwayICD-10-NO

Q74.1Medfødt misdannelse i kne

DenmarkICD-10-DK

DQ741Medfødt misdannelse i knæ

  • DQ741AAplasi af knæskal
  • DQ741BMedfødt valgusknæ
  • DQ741CMedfødt varusknæ
  • DQ741DMedfødt hypertrofi af femurkondyl
  • DQ741EMedfødt patellaluksation
  • DQ741FMedfødt misdannelse i knæ UNS
  • DQ741GMedfødt misdannelse af knæskal UNS
  • DQ741HPatella bipartita
  • and 2 more national subcodes
FinlandICD-10-FI

Q74.1Synnynnäinen polven epämuodostuma

GermanyICD-10-GM

Q74.1Angeborene Fehlbildung des Knies

FranceICD-10-FR

Q74.1Malformation congénitale du genou

NetherlandsICD-10-NL

Q74.1congenitale misvorming van knie

United StatesICD-10-CM

Q74.1Congenital malformation of knee

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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