Q31.0 Web of larynx

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applicable to

• Glottic web of larynx
• Subglottic web of larynx
• Web of larynx NOS

Applies from Q31 Congenital malformations of larynx

Excludes1 (never code together)

• congenital laryngeal stridor NOS (P28.89)

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Approximate ICD-9-CM (GEMs)

• 748.2 Web of larynx

Code annotations containing back-references to Q31.0

Back-references to Q31

• Code Also: P28 Other respiratory conditions originating in the perinatal period (", if applicable, congenital malformations of the respiratory system (Q30-Q34)")

Diagnosis Index entries for Q31.0

• Anomaly, anomalous (congenital) (unspecified type) › larynx, laryngeal (muscle) › web (bed)
• Deformity › larynx (muscle) (congenital) › web (glottic)
• Web, webbed (congenital) › larynx (glottic) (subglottic)

Nearby codes

• Q31 Congenital malformations of larynx
• Q31.0 Web of larynx (this code)
• Q31.1 Congenital subglottic stenosis
• Q31.2 Laryngeal hypoplasia
• Q31.3 Laryngocele
• Q31.5 Congenital laryngomalacia
• Q31.8 Other congenital malformations of larynx