Q18Non-billableSave
Q18 - Other congenital malformations of face and neck
ICD-10-CM Chapter 17: Congenital malformations, deformations and chromosomal abnormalities · Q10-Q18 Congenital malformations of eye, ear, face and neck (Q10-Q18) · Top-level category · FY2027
Coding Guidance
Q18 is a non-billable heading. Report one of the 10 more specific codes below.
Includes, Excludes and Coding Notes
Excludes 1 — Not Coded HereFrom Q18
Mutually exclusive: these conditions are never reported together with this code.
- 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)
Excludes 2 — Not Included HereFrom Q10-Q18 Congenital malformations of eye, ear, face and neck (Q10-Q18)
Not part of this code; report both codes when the patient has both conditions.
- 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)
Excludes 2 — Not Included HereFrom Chapter Q00-Q99
Not part of this code; report both codes when the patient has both conditions.
- inborn errors of metabolism (E70-E88)
NotesFrom Chapter Q00-Q99
Instructional notes from the ICD-10-CM tabular list.
- Codes from this chapter are not for use on maternal records
More Specific Codes (10)
Q18.0Sinus, fistula and cyst of branchial cleftBillable→Q18.1Preauricular sinus and cystBillable→Q18.2Other branchial cleft malformationsBillable→Q18.3Webbing of neckBillable→Q18.4MacrostomiaBillable→Q18.5MicrostomiaBillable→Q18.6MacrocheiliaBillable→Q18.7MicrocheiliaBillable→Q18.8Other specified congenital malformations of face and neckBillable→Q18.9Congenital malformation of face and neck, unspecifiedBillable→
Related condition guides
Documentation requirements, coding pitfalls and FAQs for conditions coded with Q18.
Chapter Information
Chapter 17: Congenital malformations, deformations and chromosomal abnormalities
Range: Q00-Q99
View full chapterRelated ICD-10 Codes
More specific codes for Q18
Sinus, fistula and cyst of branchial cleft
Q18.0›
Preauricular sinus and cystQ18.1›
Other branchial cleft malformationsQ18.2›
Webbing of neckQ18.3›
MacrostomiaQ18.4›
MicrostomiaQ18.5›
MacrocheiliaQ18.6›
MicrocheiliaQ18.7›
Other specified congenital malformations of face and neckQ18.8›
Congenital malformation of face and neck, unspecifiedQ18.9›
Other categories in this chapter
Codes at the same level as Q18
- Anencephaly and similar malformationsQ00
- EncephaloceleQ01
- MicrocephalyQ02
- Congenital hydrocephalusQ03
- Other congenital malformations of brainQ04
- Spina bifidaQ05
- Other congenital malformations of spinal cordQ06
- Other congenital malformations of nervous systemQ07
- Congenital malformations of eyelid, lacrimal apparatus and orbitQ10
- Anophthalmos, microphthalmos and macrophthalmosQ11
- Congenital lens malformationsQ12
- Congenital malformations of anterior segment of eyeQ13
- Congenital malformations of posterior segment of eyeQ14
- Other congenital malformations of eyeQ15
- Congenital malformations of ear causing impairment of hearingQ16
- Other congenital malformations of earQ17
- Congenital malformations of cardiac chambers and connectionsQ20
- Congenital malformations of cardiac septaQ21
- Congenital malformations of pulmonary and tricuspid valvesQ22
- Congenital malformations of aortic and mitral valvesQ23
- Other congenital malformations of heartQ24
- Congenital malformations of great arteriesQ25
- Congenital malformations of great veinsQ26
- Other congenital malformations of peripheral vascular systemQ27
- Other congenital malformations of circulatory systemQ28
- Congenital malformations of noseQ30
- Congenital malformations of larynxQ31
- Congenital malformations of trachea and bronchusQ32
- Congenital malformations of lungQ33
- Other congenital malformations of respiratory systemQ34
- Cleft palateQ35
- Cleft lipQ36
- Cleft palate with cleft lipQ37
- Other congenital malformations of tongue, mouth and pharynxQ38
- Congenital malformations of esophagusQ39
- Other congenital malformations of upper alimentary tractQ40
- Congenital absence, atresia and stenosis of small intestineQ41
- Congenital absence, atresia and stenosis of large intestineQ42
- Other congenital malformations of intestineQ43
- Congenital malformations of gallbladder, bile ducts and liverQ44
48 more in this chapter.