ICD-10-CM Code For Congenital Malformations Of Larynx: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group Q31 includes congenital anomalies of the larynx such as laryngeal atresia, laryngeal clefts, webs, and stenoses that impair airway, phonation, or swallowing. These ICD-10-CM diagnosis codes are used to document anatomical abnormalities present at birth, their severity, and any associated functional compromise or need for intervention. Accurate coding within the ICD-10-CM Q31 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

Customize your policy alerts

Sign up for ICD-10-CM Code For Congenital Malformations Of Larynx: Group Overview policy alerts

Get alerted when relevant policies change without checking for updates manually.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

ICD-10-CM Q31: Congenital Malformations Of Larynx Overview

This group represents congenital structural anomalies of the larynx affecting airway patency, voice, and swallowing in newborns and children. These conditions are part of congenital malformations of the respiratory system and can range from minor webbing to severe atresia. Accurate coding matters for capturing clinical complexity and supporting appropriate claim processing and medical record completeness.

When to Use

Assign a code from this group when a congenital laryngeal anomaly is diagnosed and documented in the medical record, whether identified prenatally, at birth, or during early childhood. Use these codes to capture the specific type of malformation and any documented functional impact on airway, voice, or swallowing.

ICD-10-CM Codes

7 rows

ICD-10-CM Code	Description
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

DRG Codes

6 rows

DRG Code	Description
011	Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC
012	Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC
013	Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC
154	Other Ear, Nose, Mouth and Throat Diagnoses with MCC
155	Other Ear, Nose, Mouth and Throat Diagnoses with CC
156	Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC

Typical Clinical Scenarios

Neonatal respiratory distress due to anatomic airway obstruction: A newborn in the delivery room has stridor, cyanosis, and inspiratory respiratory distress not responsive to routine resuscitation; flexible laryngoscopy reveals a partial congenital laryngeal web occluding the glottic opening. The infant is admitted to the NICU for oxygen support and possible surgical airway evaluation; a congenital laryngeal web diagnosis from this group is assigned as the primary anatomic cause of the obstruction. Typical codes: Q31.2
Chronic noisy breathing and feeding difficulty in an infant with a known congenital laryngeal anomaly: A 6-month-old presents to ENT clinic for persistent inspiratory stridor, recurrent choking with feeds, and failure to thrive; prior imaging and endoscopy documented congenital laryngomalacia with supraglottic collapse. The visit documents ongoing management and monitoring of the congenital laryngeal abnormality as the underlying chronic condition, so a code for congenital malformation of the larynx is assigned. Typical codes: Q31.0, Q31.9
Adult presenting with progressive hoarseness and intermittent airway compromise attributed to a congenital laryngeal lesion identified incidentally: A 45-year-old with long-standing mild voice change develops progressive dysphonia and intermittent dyspnea; laryngoscopy reveals a congenital laryngeal cyst or submucosal lesion causing vocal fold impairment and occasional partial airway obstruction. The clinician documents the congenital laryngeal malformation as a contributing comorbidity to the current symptoms and plans for surgical evaluation, warranting assignment of a congenital larynx malformation code. Typical codes: Q31.3, Q31.8

Related Codes

Q30-CONGENITAL-MALFORMATIONS-OF-NOSE

ICD-10-CM Code For Congenital Malformations Of Nose: Group Overview

Q32-CONGENITAL-MALFORMATIONS-TRACHEA-BRONCHUS

ICD-10-CM Code For Congenital Malformations Of Trachea And Bronchus: Group Overview

Q33-CONGENITAL-MALFORMATIONS-OF-LUNG

ICD-10-CM Code For Congenital Malformations Of Lung: Group Overview

Q34-OTHER-CONGENITAL-RESPIRATORY-MALFORMATIONS

ICD-10-CM Code For Other Congenital Malformations Of Respiratory System: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Explore openpayer tools

View all tools

When to Use

ICD-10-CM Codes

7 rows

ICD-10-CM Code	Description
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

DRG Codes

6 rows

DRG Code	Description
011	Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC
012	Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC
013	Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC
154	Other Ear, Nose, Mouth and Throat Diagnoses with MCC
155	Other Ear, Nose, Mouth and Throat Diagnoses with CC
156	Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC

Typical Clinical Scenarios

Neonatal respiratory distress due to anatomic airway obstruction: A newborn in the delivery room has stridor, cyanosis, and inspiratory respiratory distress not responsive to routine resuscitation; flexible laryngoscopy reveals a partial congenital laryngeal web occluding the glottic opening. The infant is admitted to the NICU for oxygen support and possible surgical airway evaluation; a congenital laryngeal web diagnosis from this group is assigned as the primary anatomic cause of the obstruction. Typical codes: Q31.2
Chronic noisy breathing and feeding difficulty in an infant with a known congenital laryngeal anomaly: A 6-month-old presents to ENT clinic for persistent inspiratory stridor, recurrent choking with feeds, and failure to thrive; prior imaging and endoscopy documented congenital laryngomalacia with supraglottic collapse. The visit documents ongoing management and monitoring of the congenital laryngeal abnormality as the underlying chronic condition, so a code for congenital malformation of the larynx is assigned. Typical codes: Q31.0, Q31.9
Adult presenting with progressive hoarseness and intermittent airway compromise attributed to a congenital laryngeal lesion identified incidentally: A 45-year-old with long-standing mild voice change develops progressive dysphonia and intermittent dyspnea; laryngoscopy reveals a congenital laryngeal cyst or submucosal lesion causing vocal fold impairment and occasional partial airway obstruction. The clinician documents the congenital laryngeal malformation as a contributing comorbidity to the current symptoms and plans for surgical evaluation, warranting assignment of a congenital larynx malformation code. Typical codes: Q31.3, Q31.8

Related Codes

Q30-CONGENITAL-MALFORMATIONS-OF-NOSE

ICD-10-CM Code For Congenital Malformations Of Nose: Group Overview

Q32-CONGENITAL-MALFORMATIONS-TRACHEA-BRONCHUS

ICD-10-CM Code For Congenital Malformations Of Trachea And Bronchus: Group Overview

Q33-CONGENITAL-MALFORMATIONS-OF-LUNG

ICD-10-CM Code For Congenital Malformations Of Lung: Group Overview

Q34-OTHER-CONGENITAL-RESPIRATORY-MALFORMATIONS

ICD-10-CM Code For Other Congenital Malformations Of Respiratory System: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Congenital Malformations Of Larynx: Group Overview

Sign up for ICD-10-CM Code For Congenital Malformations Of Larynx: Group Overview policy alerts

ICD-10-CM Q31: Congenital Malformations Of Larynx Overview

ICD-10-CM Code For Congenital Malformations Of Larynx: Group Overview

Sign up for ICD-10-CM Code For Congenital Malformations Of Larynx: Group Overview policy alerts

ICD-10-CM Q31: Congenital Malformations Of Larynx Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-CM codes are included in the Q31 group for congenital malformations of the larynx?

What clinical issues do Q31 group codes capture?

How does accurate coding within `Q31` support reimbursement and claims?

Which DRGs are related to congenital laryngeal malformation diagnoses in this group?

How should an unspecified congenital larynx malformation be coded from this group?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-CM codes are included in the Q31 group for congenital malformations of the larynx?

What clinical issues do Q31 group codes capture?

How does accurate coding within `Q31` support reimbursement and claims?

Which DRGs are related to congenital laryngeal malformation diagnoses in this group?

How should an unspecified congenital larynx malformation be coded from this group?

References