ICD-10-CM Codes
Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities
Q10-Q18 Congenital malformations of eye, ear, face and neck
Q18- Other congenital malformations of face and neck
2020 ICD-10-CM Diagnosis Code Q18.0

2020 ICD-10-CM Diagnosis Code Q18.0

Sinus, fistula and cyst of branchial cleft

2016

2017

2018

2019

2020

Billable/Specific Code

POA Exempt

Q18.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2020 edition of ICD-10-CM Q18.0 became effective on October 1, 2019.
This is the American ICD-10-CM version of Q18.0 - other international versions of ICD-10 Q18.0 may differ.

Applicable To

Branchial vestige

The following code(s) above Q18.0 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to Q18.0:

Q00-Q99
2020 ICD-10-CM Range Q00-Q99
Congenital malformations, deformations and chromosomal abnormalities
Note
- Codes from this chapter are not for use on maternal records
Type 2 Excludes
- inborn errors of metabolism (E70-E88)
Congenital malformations, deformations and chromosomal abnormalities
Q10-Q18
2020 ICD-10-CM Range Q10-Q18
Congenital malformations of eye, ear, face and neck
Type 2 Excludes
- cleft lip and cleft palate (Q35-Q37)
- congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4)
- congenital malformation of larynx (Q31.-)
- congenital malformation of lip NEC (Q38.0)
- congenital malformation of nose (Q30.-)
- congenital malformation of parathyroid gland (Q89.2)
- congenital malformation of thyroid gland (Q89.2)
Congenital malformations of eye, ear, face and neck
Q18
ICD-10-CM Diagnosis Code Q18
Other congenital malformations of face and neck
Type 1 Excludes
- cleft lip and cleft palate (Q35-Q37)
- conditions classified to Q67.0-Q67.4
- congenital malformations of skull and face bones (Q75.-)
- cyclopia (Q87.0)
- dentofacial anomalies [including malocclusion] (M26.-)
- malformation syndromes affecting facial appearance (Q87.0)
- persistent thyroglossal duct (Q89.2)
Other congenital malformations of face and neck

Approximate Synonyms

Branchial cleft cyst
Branchial cleft cyst type 1
Branchial cleft cyst type 2
Branchial cleft cyst type 3
Branchial cleft fistula
Branchial cleft remnant
Branchial cleft sinus
Branchial cleft sinus of face
Fistula of branchial cleft
Remnant of embryonic branchial cleft
Type 1 branchial cleft cyst
Type 2 branchial cleft cyst
Type 3 branchial cleft cyst

Present On Admission

POA Help

"Present On Admission" is defined as present at the time the order for inpatient admission occurs — conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered POA.

Q18.0 is considered exempt from POA reporting.

ICD-10-CM Q18.0 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):

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

Convert Q18.0 to ICD-9-CM

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
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

Code annotations containing back-references to Q18.0:

Type 1 Excludes: H70.8

ICD-10-CM Diagnosis Code H70.8
Other mastoiditis and related conditions
Type 1 Excludes
- preauricular sinus and cyst (Q18.1)
- sinus, fistula, and cyst of branchial cleft (Q18.0)

Diagnosis Index entries containing back-references to Q18.0:

Branchiogenic remnant Q18.0 (in neck)
Cleft (congenital) - see also Imperfect, closure
- branchial (persistent) Q18.2
  ICD-10-CM Diagnosis Code Q18.2
  Other branchial cleft malformations
  2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
  Applicable To
  Branchial cleft malformation NOS
  Cervical auricle
  Otocephaly
  - cyst Q18.0
    - fistula Q18.0
    - sinus Q18.0
Cyst (colloid) (mucous) (simple) (retention)
- branchial Q18.0 (cleft)
- branchiogenic Q18.0
- cervical lateral Q18.0
Fistula (cutaneous) L98.8
ICD-10-CM Diagnosis Code L98.8
Other specified disorders of the skin and subcutaneous tissue
- pharynx J39.2
  ICD-10-CM Diagnosis Code J39.2
  Other diseases of pharynx
  2016 2017 2018 2019 2020 Billable/Specific Code
  Applicable To
  Cyst of pharynx
  Edema of pharynx
  Type 2 Excludes
  chronic pharyngitis (J31.2)
  ulcerative pharyngitis (J02.9)
  - branchial cleft Q18.0 (congenital)
- branchial Q18.0 (cleft)
- branchiogenous Q18.0
Imperfect
- closure (congenital)
  - branchial cleft NOS Q18.2
    ICD-10-CM Diagnosis Code Q18.2
    Other branchial cleft malformations
    2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    Branchial cleft malformation NOS
    Cervical auricle
    Otocephaly
    - cyst Q18.0
    - fistula Q18.0
    - sinus Q18.0
Infection, infected, infective (opportunistic) B99.9
ICD-10-CM Diagnosis Code B99.9
Unspecified infectious disease
- branchial cyst Q18.0
Persistence, persistent (congenital)
- branchial cleft NOS Q18.2
  ICD-10-CM Diagnosis Code Q18.2
  Other branchial cleft malformations
  2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
  Applicable To
  Branchial cleft malformation NOS
  Cervical auricle
  Otocephaly
  - cyst Q18.0
  - fistula Q18.0
  - sinus Q18.0
Sinus - see also Fistula
- branchial cleft Q18.0 (internal) (external)
Vestige, vestigial - see also Persistence
- branchial Q18.0

ICD-10-CM Codes Adjacent To Q18.0

Q17 Other congenital malformations of ear

Q17.0 Accessory auricle

Q17.1 Macrotia

Q17.2 Microtia

Q17.3 Other misshapen ear

Q17.4 Misplaced ear

Q17.5 Prominent ear

Q17.8 Other specified congenital malformations of ear

Q17.9 Congenital malformation of ear, unspecified

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

Q20 Congenital malformations of cardiac chambers and connections

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2020 ICD-10-CM Diagnosis Code Q18.0

Sinus, fistula and cyst of branchial cleft

Congenital malformations, deformations and chromosomal abnormalities

Congenital malformations of eye, ear, face and neck

Other congenital malformations of face and neck

Other mastoiditis and related conditions

Other branchial cleft malformations

Other specified disorders of the skin and subcutaneous tissue

Other diseases of pharynx

Other branchial cleft malformations

Unspecified infectious disease

Other branchial cleft malformations