2020 ICD-10-CM Diagnosis Code Q31.9

Congenital malformation of larynx, unspecified

    2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
  • Q31.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM Q31.9 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of Q31.9 - other international versions of ICD-10 Q31.9 may differ.
The following code(s) above Q31.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to Q31.9:
  • Q00-Q99
    2020 ICD-10-CM Range Q00-Q99

    Congenital malformations, deformations and chromosomal abnormalities

    Note
    • Codes from this chapter are not for use on maternal records
    Type 2 Excludes
    • inborn errors of metabolism (E70-E88)
    Congenital malformations, deformations and chromosomal abnormalities
  • Q31
    ICD-10-CM Diagnosis Code Q31

    Congenital malformations of larynx

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • congenital laryngeal stridor NOS (P28.89)
    Congenital malformations of larynx
Approximate Synonyms
  • Congenital anomaly of larynx
  • Congenital laryngeal anomaly
  • Congenital laryngotracheal anomaly
Present On Admission
POA Help
"Present On Admission" is defined as present at the time the order for inpatient admission occurs — conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered POA.
  • Q31.9 is considered exempt from POA reporting.
ICD-10-CM Q31.9 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 011 Tracheostomy for face, mouth & neck diagnoses or laryngectomy with mcc
  • 012 Tracheostomy for face, mouth & neck diagnoses or laryngectomy with cc
  • 013 Tracheostomy for face, mouth & 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

Convert Q31.9 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to Q31.9:
  • Anomaly, anomalous (congenital) (unspecified type) Q89.9
    ICD-10-CM Diagnosis Code Q89.9

    Congenital malformation, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital anomaly NOS
    • Congenital deformity NOS

ICD-10-CM Codes Adjacent To Q31.9
Q30.3 Congenital perforated nasal septum
Q30.8 Other congenital malformations of nose
Q30.9 Congenital malformation of nose, unspecified
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
Q32 Congenital malformations of trachea and bronchus
Q32.0 Congenital tracheomalacia
Q32.1 Other congenital malformations of trachea
Q32.2 Congenital bronchomalacia
Q32.3 Congenital stenosis of bronchus
Q32.4 Other congenital malformations of bronchus
Q33 Congenital malformations of lung
Q33.0 Congenital cystic lung
Q33.1 Accessory lobe of lung
Q33.2 Sequestration of lung

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.