Q31 is the ICD-10 code for Congenital malformations of larynx. It is a three-character category divided into 7 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block Q30–Q34 (Congenital malformations of the respiratory system) in Chapter XVII, Congenital malformations, deformations and chromosomal abnormalities.
- Code type
- Category (3 characters)
- Chapter
- XVII · Q00–Q99
- Classification
- WHO ICD-10, 2019 version
What Q31 excludes
Conditions that look similar but belong under another code.
- congenital (laryngeal) stridor NOS P28.8
Subcodes of Q31
Q31 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DQ31Medfødte misdannelser i strubehovedet
Q31Synnynnäiset kurkunpään epämuodostumat
- Q31.40Synnynnäinen kurkunpään pehmeys
- Q31.48Muu synnynnäinen kurkunpään ahtaus
Q31Angeborene Fehlbildungen des Kehlkopfes
Q31Malformations congénitales du larynx
Q31congenitale misvormingen van 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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