Q18.4
BillableMacrostomia
Macrostomia
Status
Billable / Specific
Parent Code
Q18Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- inborn errors of metabolism (E70-E88)
- 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)
Also Known As / Clinical Terms
SNOMED CT
- Ablepharia13401001
- Ablepharon13401001
- Ablepharon - absent eyelids13401001
- Open eye13401001
- Eyes wide apart22006008
- Eyes widely set22006008
- Hypertelorism22006008
- Orbital hypertelorism22006008
- Orbital separation excessive22006008
- Congenital macrostomia40159009
- Macrostomia40159009
- Bilateral congenital macrostomia49813000
- Bilateral macrostomia49813000
- Sphenoidal dysostosis109414004
- Mass of preauricular region447868007
- Ablepharon macrostomia syndrome718575002
- Macrostomia, preauricular tag, external ophthalmoplegia syndrome723366001
- Congenital left sided macrostomia767031008
- Congenital macrostomia of left side of mouth767031008
- Congenital macrostomia of right side of mouth767032001
- Congenital right sided macrostomia767032001
- Macroblepharon, ectropion, hypertelorism, macrostomia syndrome773557002
- Mandibulofacial dysostosis, macroblepharon, macrostomia syndrome773557002
Frequently Asked Questions
What is the ICD-10 code for macrostomia?
The ICD-10-CM code for macrostomia is Q18.4. The full clinical description is "Macrostomia". Q18.4 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code Q18.4 mean?
ICD-10-CM code Q18.4 represents "Macrostomia". It is classified under Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities and is a billable/specific code that can be used on a claim.
Is Q18.4 a billable code?
Yes, Q18.4 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is Q18.4 in?
Q18.4 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).
What codes cannot be used with Q18.4?
Q18.4 has Excludes1 notes indicating codes that cannot be used together with it, including: cleft lip and cleft palate (Q35-Q37); conditions classified to Q67.0-Q67.4; congenital malformations of skull and face bones (Q75.-); and 4 more.
What SNOMED CT codes does Q18.4 map to?
Q18.4 maps to 11 SNOMED CT concepts: 13401001, 718575002, 49813000, 767031008, 40159009, and 6 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for Q18.4?
Q18.4 is linked to 1 UMLS Concept Unique Identifier: C0024433. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.