AutoICD API

Q18.5

Billable

Microstomia

Microstomia

Status

Billable / Specific

Parent Code

Q18

Coding Notes

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • 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

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

UMLS

Frequently Asked Questions

What is the ICD-10 code for microstomia?

The ICD-10-CM code for microstomia is Q18.5. The full clinical description is "Microstomia". Q18.5 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code Q18.5 mean?

ICD-10-CM code Q18.5 represents "Microstomia". 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 Q18.5 a billable code?

Yes, Q18.5 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is Q18.5 in?

Q18.5 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).

What codes cannot be used with Q18.5?

Q18.5 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 Q18.5 map to?

Q18.5 maps to 2 SNOMED CT concepts: 773750003, 14582003. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for Q18.5?

Q18.5 is linked to 1 UMLS Concept Unique Identifier: C0026034. 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.