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ICD-10-CM Current in FY 2027

Q18.0

Sinus, fistula and cyst of branchial cleft

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where Q18.0 sits in the official hierarchy. Each level is the code it is classified under.

  1. Q18 Parent Other congenital malformations of face and neck
  2. Q18.0 This code Sinus, fistula and cyst of branchial cleft

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Inclusion Terms

Branchial vestige

Excludes1

cleft lip and cleft palate (Q35-Q37)

Inherited from Q18 — Other congenital malformations of face and neck

Excludes1

conditions classified to Q67.0-Q67.4

Inherited from Q18 — Other congenital malformations of face and neck

Excludes1

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

Inherited from Q18 — Other congenital malformations of face and neck

Excludes1

cyclopia ( Q87.0 )

Inherited from Q18 — Other congenital malformations of face and neck

Excludes1

dentofacial anomalies [including malocclusion] ( M26 .-)

Inherited from Q18 — Other congenital malformations of face and neck

Excludes1

malformation syndromes affecting facial appearance ( Q87.0 )

Inherited from Q18 — Other congenital malformations of face and neck

Excludes1

persistent thyroglossal duct ( Q89.2 )

Inherited from Q18 — Other congenital malformations of face and neck

Version History

How Q18.0 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Sinus, fistula and cyst of branchial cleft

  2. FY 2026 Effective

    Unchanged

    Sinus, fistula and cyst of branchial cleft

Related Codes

Other codes under Q18

Codes whose official notes reference Q18.0

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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