All ICD10 Codes

Q18.5

Billable
ChapterQ00–Q99
Ranksubcategory
Official Description

Microstomia

Metadata & Insights
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99).
General instructions are available for the parent sections:
View CH17 NotesView Q10-Q18 NotesView Q18 Notes

Clinical Hierarchy

BillableHas subcodes
CH17Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
Q10-Q18Congenital malformations of eye, ear, face and neck (Q10-Q18)
Q18Other congenital malformations of face and neck
Q18.5MicrostomiaBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to Q18.5:

categoryQ18
Other congenital malformations of face and neck
View context instructions
blockQ10-Q18
Congenital malformations of eye, ear, face and neck (Q10-Q18)
View context instructions
chapterCH17
Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
View context instructions

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 157
Dental and Oral Diseases with MCC
DRG 158
Dental and Oral Diseases with CC
DRG 159
Dental and Oral Diseases without CC/MCC

Cross Reference

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