2020 ICD-10-CM Diagnosis Code Q31.8

Other congenital malformations of larynx

    2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
  • Q31.8 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 Q31.8 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of Q31.8 - other international versions of ICD-10 Q31.8 may differ.
Applicable To
  • 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
The following code(s) above Q31.8 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 Q31.8:
  • 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 cleft larynx
  • Laryngeal cleft
Clinical Information
  • Congenital atresia of the larynx. It is fatal unless tracheostomy is performed immediately after birth.
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.
  • Q31.8 is considered exempt from POA reporting.
ICD-10-CM Q31.8 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 Q31.8 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 Q31.8:
  • Absence (of) (organ or part) (complete or partial)
    • larynx (congenital) Q31.8
    • thyroid (gland) (acquired) E89.0
      ICD-10-CM Diagnosis Code E89.0

      Postprocedural hypothyroidism

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Postirradiation hypothyroidism
      • Postsurgical hypothyroidism
      • cartilage, congenital Q31.8
    • cricoid cartilage, congenital Q31.8
    • epiglottis, congenital Q31.8
    • glottis, congenital Q31.8
  • Accessory (congenital)
    • vocal cords Q31.8
  • Agenesis
    • thyroid (gland) E03.1
      ICD-10-CM Diagnosis Code E03.1

      Congenital hypothyroidism without goiter

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Aplasia of thyroid (with myxedema)
      • Congenital atrophy of thyroid
      • Congenital hypothyroidism NOS
      • cartilage Q31.8
    • cricoid cartilage Q31.8
    • epiglottis Q31.8
    • glottis Q31.8
    • larynx Q31.8
  • 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
    • thyroid (gland) Q89.2
      ICD-10-CM Diagnosis Code Q89.2

      Congenital malformations of other endocrine glands

        2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
      Applicable To
      • Congenital malformation of parathyroid or thyroid gland
      • Persistent thyroglossal duct
      • Thyroglossal cyst
      Type 1 Excludes
      • congenital goiter (E03.0)
      • congenital hypothyroidism (E03.1)
      • cartilage Q31.8
    • union
      • cricoid cartilage and thyroid cartilage Q31.8
      • thyroid cartilage and hyoid bone Q31.8
      • trachea with larynx Q31.8
    • aryteno-epiglottic folds Q31.8
    • cricoid cartilage Q31.8
    • epiglottis Q31.8
    • glottis Q31.8
    • valleculae Q31.8
  • Atresia, atretic
    • cricoid cartilage Q31.8
    • epiglottis Q31.8
    • glottis Q31.8
    • larynx Q31.8
    • thyroid cartilage Q31.8
  • Cleft (congenital) - see also Imperfect, closure
    • cricoid cartilage, posterior Q31.8
    • thyroid cartilage Q31.8
  • Constriction - see also Stricture
    • larynx J38.6
      ICD-10-CM Diagnosis Code J38.6

      Stenosis of larynx

        2016 2017 2018 2019 2020 Billable/Specific Code
  • Cyst (colloid) (mucous) (simple) (retention)
    • congenital NEC Q89.8
      ICD-10-CM Diagnosis Code Q89.8

      Other specified congenital malformations

        2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
      Use Additional
      • code(s) to identify all associated manifestations
      • epiglottis Q31.8
      • larynx Q31.8
  • Deformity 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
    • cricoid cartilage (congenital) Q31.8
    • epiglottis (congenital) Q31.8
    • larynx (muscle) (congenital) Q31.8
    • thyroid (gland) (congenital) Q89.2
      ICD-10-CM Diagnosis Code Q89.2

      Congenital malformations of other endocrine glands

        2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
      Applicable To
      • Congenital malformation of parathyroid or thyroid gland
      • Persistent thyroglossal duct
      • Thyroglossal cyst
      Type 1 Excludes
      • congenital goiter (E03.0)
      • congenital hypothyroidism (E03.1)
  • Elongated, elongation (congenital) - see also Distortion
    • petiolus Q31.8 (epiglottidis)
  • Fissure, fissured
    • larynx J38.7
      ICD-10-CM Diagnosis Code J38.7

      Other diseases of larynx

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Abscess of larynx
      • Cellulitis of larynx
      • Disease of larynx NOS
      • Necrosis of larynx
      • Pachyderma of larynx
      • Perichondritis of larynx
      • Ulcer of larynx
      • congenital Q31.8
    • epiglottis Q31.8 (congenital)
  • Imperfect
    • closure (congenital)
      • cricoid cartilage Q31.8
      • glottis Q31.8
      • larynx Q31.8
  • Laryngofissure J38.7
    ICD-10-CM Diagnosis Code J38.7

    Other diseases of larynx

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Abscess of larynx
    • Cellulitis of larynx
    • Disease of larynx NOS
    • Necrosis of larynx
    • Pachyderma of larynx
    • Perichondritis of larynx
    • Ulcer of larynx
    • congenital Q31.8
  • Malposition
    • congenital
      • thyroid (gland) (tissue) Q89.2
        ICD-10-CM Diagnosis Code Q89.2

        Congenital malformations of other endocrine glands

          2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
        Applicable To
        • Congenital malformation of parathyroid or thyroid gland
        • Persistent thyroglossal duct
        • Thyroglossal cyst
        Type 1 Excludes
        • congenital goiter (E03.0)
        • congenital hypothyroidism (E03.1)
        • cartilage Q31.8
      • epiglottis Q31.8
      • glottis Q31.8
      • larynx Q31.8
  • Obstruction, obstructed, obstructive
    • larynx NEC J38.6
      ICD-10-CM Diagnosis Code J38.6

      Stenosis of larynx

        2016 2017 2018 2019 2020 Billable/Specific Code
      • congenital Q31.8
  • Stenosis, stenotic (cicatricial) - see also Stricture
    • larynx J38.6
      ICD-10-CM Diagnosis Code J38.6

      Stenosis of larynx

        2016 2017 2018 2019 2020 Billable/Specific Code
  • Stricture - see also Stenosis
    • larynx J38.6
      ICD-10-CM Diagnosis Code J38.6

      Stenosis of larynx

        2016 2017 2018 2019 2020 Billable/Specific Code

ICD-10-CM Codes Adjacent To Q31.8
Q30.2 Fissured, notched and cleft nose
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

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