kodex

Kodex

ICD-10-CM
Code

Q18.1

Preauricular sinus and cyst

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Hierarchy

  • Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • Q10-Q18 Congenital malformations of eye, ear, face and neck (Q10-Q18)
      • Q18 Other congenital malformations of face and neck
        • Q18.0 Sinus, fistula and cyst of branchial cleft
        • Q18.1 Preauricular sinus and cyst
        • Q18.2 Other branchial cleft malformations
        • Q18.3 Webbing of neck
        • Q18.4 Macrostomia
        • Q18.5 Microstomia
        • Q18.6 Macrocheilia
        • Q18.7 Microcheilia
        • Q18.8 Other specified congenital malformations of face and neck
        • Q18.9 Congenital malformation of face and neck, unspecified

Notes

Q00-Q99

  • Codes from this chapter are not for use on maternal records

Inclusion Terms

Q18.1

  • Fistula of auricle, congenital
  • Cervicoaural fistula

Excludes 1

Q18

  • Q35-Q37 Cleft lip and cleft palate (Q35-Q37)
  • conditions classified to Q67.0-Q67.4
  • congenital malformations of skull and face bones (Q75.-)
    • Q75 Other congenital malformations of skull and face bones
  • cyclopia (Q87.0)
    • Q87.0 Congenital malformation syndromes predominantly affecting facial appearance
  • M26 Dentofacial anomalies [including malocclusion]
  • malformation syndromes affecting facial appearance (Q87.0)
    • Q87.0 Congenital malformation syndromes predominantly affecting facial appearance
  • persistent thyroglossal duct (Q89.2)
    • Q89.2 Congenital malformations of other endocrine glands

Excludes 2

Q10-Q18

  • Q35-Q37 Cleft lip and cleft palate (Q35-Q37)
  • congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4)
    • Q05.0 Cervical spina bifida with hydrocephalus
    • Q05.5 Cervical spina bifida without hydrocephalus
    • Q67.5 Congenital deformity of spine
  • congenital malformation of larynx (Q31.-)
    • Q31 Congenital malformations of larynx
  • congenital malformation of lip NEC (Q38.0)
    • Q38.0 Congenital malformations of lips, not elsewhere classified
  • congenital malformation of nose (Q30.-)
    • Q30 Congenital malformations of nose
  • congenital malformation of parathyroid gland (Q89.2)
    • Q89.2 Congenital malformations of other endocrine glands
  • congenital malformation of thyroid gland (Q89.2)
    • Q89.2 Congenital malformations of other endocrine glands

Q00-Q99

  • inborn errors of metabolism (E70-E88)
    • E70-E88 Metabolic disorders (E70-E88)

Related Terms