All ICD10 Codes

Q90.9

Billable
ChapterQ00–Q99
Ranksubcategory
Official Description

Down syndrome, unspecified

Metadata & Insights
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99).

Instructional Notes

Includes
  • Trisomy 21 NOS
General instructions are available for the parent sections:
View CH17 NotesView Q90-Q99 NotesView Q90 Notes

Clinical Hierarchy

BillableHas subcodes
CH17Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
Q90-Q99Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
Q90Down syndrome
Q90.9Down syndrome, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to Q90.9:

categoryQ90
Down syndrome
View context instructions
blockQ90-Q99
Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
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 884
Organic Disturbances and Intellectual Disability

Cross Reference

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