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ICD-10-CM Codes Browse (Tabular) Diagnostic External Drug Neoplasm

Q90.9 – Down syndrome, unspecified

Overview

Coding Notes

Active
Billable, valid for HIPAA-covered transactions

Applicable To

Trisomy 21 NOS

GEM Conversion to ICD-9 CM

Fs: 10000 – Down's syndrome

MDC / MS-DRG Reference

ORGANIC DISTURBANCES AND INTELLECTUAL DISABILITY

Back Reference of Diagnostic Codes

Down syndrome Q90.9
Syndrome See also Disease
Down See also Down syndrome Q90.9
trisomy Q92.9
21 Q90.9
Trisomy (syndrome) Q92.9
21 (partial) Q90.9

Sibling Codes

Trisomy 21, nonmosaicism (meiotic nondisjunction)
Trisomy 21, mosaicism (mitotic nondisjunction)
Trisomy 21, translocation

Parent Sibling Codes

Down syndrome
Trisomy 18 and Trisomy 13
Other trisomies and partial trisomies of the autosomes, not elsewhere classified
Monosomies and deletions from the autosomes, not elsewhere classified
Balanced rearrangements and structural markers, not elsewhere classified
Turner's syndrome
Other sex chromosome abnormalities, female phenotype, not elsewhere classified
Other sex chromosome abnormalities, male phenotype, not elsewhere classified
Other chromosome abnormalities, not elsewhere classified

View in Tabular

Code Title
Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Q90-Q99 Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
Q90 Down syndrome
Q90.9 Down syndrome, unspecified
Applicable to
Trisomy 21 NOS