2016201720182019202020212022202320242025Billable/Specific Code
- Q18.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM Q18.1 became effective on October 1, 2022.
- This is the American ICD-10-CM version of Q18.1 – other international versions of ICD-10 Q18.1 may differ.
ICD-10-CM Q18.1 is grouped within Diagnostic Related Group(s):
- 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
Applicable To
- Fistula of auricle, congenital
- Cervicoaural fistula
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 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
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- 2024 (effective 10/1/2023): No change
- 2025 (effective 10/1/2024): No change
Diagnosis Index entries containing back-references to Q18.1:
- ear (external) > Cyst (colloid) (mucous) (simple) (retention)
- preauricular > Cyst (colloid) (mucous) (simple) (retention)
- auricle > Fistula (cutaneous) L98.8
- congenital > auricle Q18.1
- cervical, lateral > Fistula (cutaneous) L98.8
- cervicoaural > Fistula (cutaneous) L98.8
- preauricular (congenital) > Fistula (cutaneous) L98.8
- preauricular sinus > closure (congenital) Q45.8
- preauricular > Sinus