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ICD-10 diagnosis code

Q31.8 Other congenital malformations of larynx

This page in Swedish

Q31.8 is the ICD-10 code for Other congenital malformations of larynx. It is a four-character subcategory of Q31 (Congenital malformations of larynx), the most specific level in the WHO edition. It belongs to the block Q30–Q34 (Congenital malformations of the respiratory 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 Q31.8 includes

Conditions and terms that are coded here.

  • Absence
    • of cricoid cartilage, epiglottis, glottis, larynx or thyroid cartilage
  • Agenesis
    • of cricoid cartilage, epiglottis, glottis, larynx or thyroid cartilage
  • Atresia
    • of cricoid cartilage, epiglottis, glottis, larynx or thyroid cartilage
  • Cleft thyroid cartilage
  • Congenital stenosis of larynx NEC
  • Fissure of epiglottis
  • Posterior cleft of cricoid cartilage

Q31.8 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

Q31.8Andra medfödda missbildningar av larynx

NorwayICD-10-NO

Q31.8Annen spesifisert medfødt misdannelse i strupehode

DenmarkICD-10-DK

DQ318Anden medfødt misdannelse i strubehovedet

  • DQ318AAgenesi af epiglottis
  • DQ318BAgenesi af glottis
  • DQ318CAgenesi af larynx
  • DQ318DAtresi af epiglottis
  • DQ318EAtresi af glottis
  • DQ318FAtresi af larynx
  • DQ318GKondromalaci i epiglottis
  • DQ318HKondromalaci i larynx
  • and 4 more national subcodes
FinlandICD-10-FI

Q31.8Muu synnynnäinen kurkunpään epämuodostuma

GermanyICD-10-GM

Q31.8Sonstige angeborene Fehlbildungen des Kehlkopfes

FranceICD-10-FR

Q31.8Autres malformations congénitales du larynx

NetherlandsICD-10-NL

Q31.8overige gespecificeerde congenitale misvormingen van larynx

United StatesICD-10-CM

Q31.8Other congenital malformations of larynx

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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