ICD-10-CM code "Q18.1": Preauricular sinus and cyst (2024)

Overview

ICD-10 CodeQ18.1
DescriptionPreauricular sinus and cyst
Hierarchy
  1. Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  2. Congenital malformations of eye, ear, face and neck (Q10-Q18)
  3. Other congenital malformations of face and neck (Q18)
  4. Preauricular sinus and cyst (Q18.1)
Billable statusICD-10-CM Billable code

Excludes

  1. Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)

    Type 2inborn errors of metabolism (E70-E88)

  2. Congenital malformations of eye, ear, face and neck (Q10-Q18)

    Type 2cleft lip and cleft palate (Q35-Q37)

    Type 2congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4)

    Type 2congenital malformation of larynx (Q31.-)

    Type 2congenital malformation of lip NEC (Q38.0)

    Type 2congenital malformation of nose (Q30.-)

    Type 2congenital malformation of parathyroid gland (Q89.2)

    Type 2congenital malformation of thyroid gland (Q89.2)

  3. Other congenital malformations of face and neck (Q18)

    Type 1cleft lip and cleft palate (Q35-Q37)

    Type 1conditions classified to Q67.0-Q67.4

    Type 1congenital malformations of skull and face bones (Q75.-)

    Type 1cyclopia (Q87.0)

    Type 1dentofacial anomalies [including malocclusion] (M26.-)

    Type 1malformation syndromes affecting facial appearance (Q87.0)

    Type 1persistent thyroglossal duct (Q89.2)

  4. Preauricular sinus and cyst (Q18.1)

Includes

  1. Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  2. Congenital malformations of eye, ear, face and neck (Q10-Q18)
  3. Other congenital malformations of face and neck (Q18)
  4. Preauricular sinus and cyst (Q18.1)