Congenital malformations of larynx - Q31
Excludes1: It indicates that the conditions described by two codes cannot occur together in the same patient. These codes are mutually exclusive.
Type 1 Excludes:
- congenital laryngeal stridor NOS (P28.89)
These ranges represents subcategories of Congenital malformations of larynx. The "Q31" signifies that these are the diseases within this broad category.