Congenital malformations of larynx (Q31)
Clinical Information
Laryngocele - Congenital anomalous dilitation of the laryngeal saccule that may extend internally into the airway or externally through the thyrohyoid membrane.
Laryngomalacia - A congenital or acquired condition of underdeveloped or degeneration of CARTILAGE in the LARYNX. This results in a floppy laryngeal wall making patency difficult to maintain.
Tracheomalacia - A congenital or acquired condition of underdeveloped or degeneration of CARTILAGE in the TRACHEA. This results in a floppy tracheal wall making patency difficult to maintain. It is characterized by wheezing and difficult breathing.
Instructional Notations
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- congenital laryngeal stridor NOS P28.89
Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Congenital malformations of the respiratory system (Q30-Q34)
Q31 Congenital malformations of larynx
- Q31.0 Web of larynx
- Q31.1 Congenital subglottic stenosis
- Q31.2 Laryngeal hypoplasia
- Q31.3 Laryngocele
- Q31.5 Congenital laryngomalacia
- Q31.8 Other congenital malformations of larynx
- Q31.9 Congenital malformation of larynx, unspecified
Congenital malformations of larynx (Q31)