Q18.1
BillablePreauricular sinus and cyst
Preauricular sinus and cyst
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Fistula of auricle, congenital
- Cervicoaural fistula
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •inborn errors of metabolismE70-E88
- •cleft lip and cleft palateQ35-Q37
- •congenital malformation of cervical spine, , ,Q05.0, Q05.5, Q67.5, Q76.0-Q76.4
- •congenital malformation of larynxQ31
- •congenital malformation of lip NECQ38.0
- •congenital malformation of noseQ30
- •congenital malformation of parathyroid glandQ89.2
- •congenital malformation of thyroid glandQ89.2
Related Codes(9)
Q18.0Sinus, fistula and cyst of branchial cleft
Q18.2Other branchial cleft malformations
Q18.3Webbing of neck
Q18.4Macrostomia
Q18.5Microstomia
Q18.6Macrocheilia
Q18.7Microcheilia
Q18.8Other specified congenital malformations of face and neck
Q18.9Congenital malformation of face and neck, unspecified
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(74)
SNOMED CT
- Preauricular cyst18820007
- Eyes wide apart22006008
- Eyes widely set22006008
- Hypertelorism22006008
- Orbital hypertelorism22006008
- Orbital separation excessive22006008
- Congenital fistula of neck57014008
- Fistula colli congenita57014008
- Congenital cervicoaural fistula66597000
- Branchial cleft fistula204268008
- Branchial fistula204268008
- Fistula of branchial cleft204268008
- Congenital preauricular fistula204272007
- Fistula auris congenita204272007
- Preauricular fistula204272007
- Preauricular sinus204272007
- Cyst of pinna446112008
- Mass of preauricular region447868007
- Infection of preauricular sinus609209009
- HPPD (hypertelorism, preauricular sinus, punctual pits, deafness) syndrome773667003
- Hypertelorism, preauricular sinus, punctual pits, deafness syndrome773667003
- Hypertelorism, preauricular sinus, punctual pits, hearing loss syndrome773667003
- Congenital fistula of pinna of ear780818005
- Congenital cyst of pinna of ear780819002
- Embryonic cyst of pinna of ear780819002
- Bilateral preauricular regions cyst15863971000119106
- Cyst of bilateral preauricular regions15863971000119106
- Cyst of both preauricular regions15863971000119106
- Cyst of left preauricular region15864011000119101
- Left preauricular region cyst15864011000119101
- Cyst of right preauricular region15864051000119100
- Right preauricular region cyst15864051000119100
UMLS
Clinical Terms
- Cyst of bilateral preauricular regions
- Bilateral preauricular regions cyst
- Eyes wide apart
- Fistula of auricle, congenital
- Preauricular fistula
- Preauricular cyst
- Infection of preauricular sinus
- Congenital preauricular fistula
- Orbital separation excessive
- Hypertelorism
- HPPD (hypertelorism, preauricular sinus, punctual pits, deafness) syndrome
- Branchial cleft fistula
- Congenital fistula of neck
- Left preauricular region cyst
- Fistula colli congenita
- Mass of preauricular region
- Cyst of left preauricular region
- Preauricular sinus
- Cyst of right preauricular region
- Right preauricular region cyst
- Hypertelorism, preauricular sinus, punctual pits, hearing loss syndrome
- Cyst of both preauricular regions
- Fistula auris congenita
- Cyst of pinna
- Congenital fistula of pinna of ear
- Fistula of branchial cleft
- Branchial fistula
- Congenital aural fistula
- Congenital cervicoaural fistula (disorder)
- Hypertelorism, preauricular sinus, punctual pits, deafness syndrome
- Embryonic cyst of pinna of ear
- Orbital hypertelorism
- Congenital cervicoaural fistula
- Congenital cyst of pinna of ear
- Cervicoaural fistula
- Eyes widely set
Frequently Asked Questions
What is the ICD-10 code for preauricular sinus and cyst?
The ICD-10-CM code for preauricular sinus and cyst is Q18.1. The full clinical description is "Preauricular sinus and cyst". Q18.1 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code Q18.1 mean?
ICD-10-CM code Q18.1 represents “Preauricular sinus and cyst”. It is classified under Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities and is a billable/specific code that can be used on a claim.
Is Q18.1 a billable code?
Yes, Q18.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is Q18.1 in?
Q18.1 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).
What codes cannot be used with Q18.1?
Q18.1 has Excludes1 notes indicating codes that cannot be used together with it, including: cleft lip and cleft palate (Q35-Q37); conditions classified to Q67.0-Q67.4; congenital malformations of skull and face bones (Q75.-); and 4 more.
What SNOMED CT codes does Q18.1 map to?
Q18.1 maps to 15 SNOMED CT concepts: 15863971000119106, 204268008, 66597000, 780819002, 57014008, and 10 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for Q18.1?
Q18.1 is linked to 3 UMLS Concept Unique Identifiers: C0266627, C0266626, C0495506. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does Q18.1 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like preauricular sinus and cyst affect a person's functioning: body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of Q18.1?
Q18.1 maps to the ICD-11 code: LA2Z (Structural developmental anomalies of the ear, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.