Q31.8

Q31.8: Other congenital malformations of larynx

Billable / specific codeICD-10-CMPOA exempt

Q31.8 is a billable, specific ICD-10-CM code for other congenital malformations of larynx. It is valid for submission on a claim.

Check Q31.8 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Absence of larynx
Agenesis of larynx
Atresia of larynx
Congenital cleft thyroid cartilage
Congenital fissure of epiglottis
Congenital stenosis of larynx NEC
Posterior cleft of cricoid cartilage

Excludes1 inherited from the categories above Q31.8

A category’s note binds every code beneath it.

Written on Q31: Congenital malformations of larynx

congenital laryngeal stridor NOS (P28.89)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Q31.8 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
A56868Billing and Coding: Outpatient Speech Language Pathology
A57204Billing and Coding: MRI and CT Scans of the Head and Neck

Alphabetic index entries that lead here

Absence›cricoid cartilage, congenital
Absence›epiglottis, congenital
Absence›glottis, congenital
Absence›larynx(congenital)
Accessory›vocal cords
Agenesis›cricoid cartilage
Agenesis›epiglottis
Agenesis›glottis
Agenesis›larynx
Anomaly, anomalous›aryteno-epiglottic folds
Anomaly, anomalous›cricoid cartilage
Anomaly, anomalous›epiglottis

Code history

Unchanged in every release from FY2024 to FY2027.