Congenital malformations of nose - Q30
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 deviation of nasal septum (Q67.4)
These ranges represents subcategories of Congenital malformations of nose. The "Q30" signifies that these are the diseases within this broad category.