2021 ICD-10-CM Diagnosis Code Q16.1

Congenital absence, atresia and stricture of auditory canal (external)

    2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
  • Q16.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Congenital absence, atresia and stricture of auditory canal
  • The 2021 edition of ICD-10-CM Q16.1 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of Q16.1 - other international versions of ICD-10 Q16.1 may differ.
Applicable To
  • Congenital atresia or stricture of osseous meatus
The following code(s) above Q16.1 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 Q16.1:
  • Q00-Q99
    2021 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
  • Q10-Q18
    2021 ICD-10-CM Range Q10-Q18

    Congenital malformations of eye, ear, face and neck

    Type 2 Excludes
    • cleft lip and cleft palate (Q35-Q37)
    • congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4)
    • congenital malformation of larynx (Q31.-)
    • congenital malformation of lip NEC (Q38.0)
    • congenital malformation of nose (Q30.-)
    • congenital malformation of parathyroid gland (Q89.2)
    • congenital malformation of thyroid gland (Q89.2)
    Congenital malformations of eye, ear, face and neck
  • Q16
    ICD-10-CM Diagnosis Code Q16

    Congenital malformations of ear causing impairment of hearing

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • congenital deafness (H90.-)
    Congenital malformations of ear causing impairment of hearing
Approximate Synonyms
  • Atresia external ear congenital
  • Congenital atresia of bilateral external ears
  • Congenital atresia of external auditory canal
  • Congenital atresia of left external ear
  • Congenital atresia of right external ear
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.
  • Q16.1 is considered exempt from POA reporting.
ICD-10-CM Q16.1 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 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 Q16.1 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
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to Q16.1:
  • Absence (of) (organ or part) (complete or partial)
    • auditory canal Q16.1 (congenital) (external)
  • Agenesis
    • auditory Q16.1 (canal) (external)
    • osseous meatus Q16.1 (ear)
  • Anomaly, anomalous (congenital) (unspecified type) Q89.9
    ICD-10-CM Diagnosis Code Q89.9

    Congenital malformation, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital anomaly NOS
    • Congenital deformity NOS
    • osseous meatus Q16.1 (ear)
  • Atresia, atretic
    • auditory canal Q16.1 (external)
    • ear canal Q16.1
    • osseous meatus Q16.1 (ear)
  • Fusion, fused (congenital)
    • auditory canal Q16.1
  • Malformation (congenital) - see also Anomaly
    • ear Q17.9
      ICD-10-CM Diagnosis Code Q17.9

      Congenital malformation of ear, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
      Applicable To
      • Congenital anomaly of ear NOS
      • external Q17.9
        ICD-10-CM Diagnosis Code Q17.9

        Congenital malformation of ear, unspecified

          2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
        Applicable To
        • Congenital anomaly of ear NOS
        • causing impairment of hearing Q16.9
          ICD-10-CM Diagnosis Code Q16.9

          Congenital malformation of ear causing impairment of hearing, unspecified

            2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
          Applicable To
          • Congenital absence of ear NOS
  • Stenosis, stenotic (cicatricial) - see also Stricture
    • external ear canal (acquired) H61.30-
      ICD-10-CM Diagnosis Code H61.30-

      Acquired stenosis of external ear canal, unspecified

        2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
      • congenital Q16.1
  • Stricture - see also Stenosis

ICD-10-CM Codes Adjacent To Q16.1
Q14.2 Congenital malformation of optic disc
Q14.3 Congenital malformation of choroid
Q14.8 Other congenital malformations of posterior segment of eye
Q14.9 Congenital malformation of posterior segment of eye, unspecified
Q15 Other congenital malformations of eye
Q15.0 Congenital glaucoma
Q15.8 Other specified congenital malformations of eye
Q15.9 Congenital malformation of eye, unspecified
Q16 Congenital malformations of ear causing impairment of hearing
Q16.0 Congenital absence of (ear) auricle
Q16.1 Congenital absence, atresia and stricture of auditory canal (external)
Q16.2 Absence of eustachian tube
Q16.3 Congenital malformation of ear ossicles
Q16.4 Other congenital malformations of middle ear
Q16.5 Congenital malformation of inner ear
Q16.9 Congenital malformation of ear causing impairment of hearing, unspecified
Q17 Other congenital malformations of ear
Q17.0 Accessory auricle
Q17.1 Macrotia
Q17.2 Microtia
Q17.3 Other misshapen ear

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