ICD-10 code for larynx congenital absence

The ICD-10-CM code for larynx congenital absence is Q31.8 (Other congenital malformations of larynx). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on Q31.8.

Within Q31, choose Q31.8 (Other congenital malformations of larynx) only when documentation doesn't support a more specific option: web of larynx (Q31.0), congenital subglottic stenosis (Q31.1), laryngeal hypoplasia (Q31.2), Laryngocele (Q31.3), congenital laryngomalacia (Q31.5) and congenital malformation of larynx, unspecified (Q31.9).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 011 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC, relative weight 5.6154), DRG 012 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC, relative weight 4.381), DRG 013 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC, relative weight 2.7307), DRG 154 (Other Ear, Nose, Mouth and Throat Diagnoses with MCC, relative weight 1.5921), DRG 155 (Other Ear, Nose, Mouth and Throat Diagnoses with CC, relative weight 0.9322) and DRG 156 (Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC, relative weight 0.6659), in Pre-MDC and MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.