Q90
Non-billableDown syndrome
Down syndrome
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Status
Non-billable / Header
Child Codes
4
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
- code(s) to identify any associated degree of intellectual disabilities (F70-F79)
Code Also
A second code may be required; sequencing depends on circumstances
- associated physical condition(s), such as atrioventricular septal defect (Q21.2-)
Child Codes (4)
Also Known As / Clinical Terms
UMLS
- 21 trisomiesC0013080
- 21 trisomyC0013080
- 47,XX,+21C0013080
- 47,XY,+21C0013080
- DOWN SYNDROMEC0013080
- Down SyndromeC0013080
- Down syndromeC0013080
- Down syndrome, unspecifiedC0013080
- Down's SyndromeC0013080
- Down's syndromeC0013080
- Downs SyndromeC0013080
- Downs syndromeC0013080
- MongolismC0013080
- Syndrome Down'sC0013080
- Syndrome, DownC0013080
- Syndrome, Down'sC0013080
- TRISOMY 21C0013080
- Trisomy 21C0013080
- Trisomy 21 (Down Syndrome)C0013080
- Trisomy 21 (morphologic abnormality)C0013080
- Trisomy 21 NOSC0013080
- Trisomy 21 SyndromeC0013080
- Trisomy GC0013080
- down s syndromeC0013080
- downing syndromeC0013080
- mongolismC0013080
- mongoloidismC0013080
- morbus downC0013080
- trisomy 21C0013080
- trisomy 21 syndromeC0013080
Frequently Asked Questions
What is the ICD-10 code for down syndrome?
The ICD-10-CM code for down syndrome is Q90. The full clinical description is "Down syndrome". Q90 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code Q90 mean?
ICD-10-CM code Q90 represents "Down syndrome". It is classified under Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities and is a non-billable header code. Use a more specific child code for billing purposes.
Is Q90 a billable code?
No, Q90 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under Q90.
What chapter is Q90 in?
Q90 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).
What are the subcategories under Q90?
Q90 has 4 child codes, including: Q90.0 (Trisomy 21, nonmosaicism (meiotic nondisjunction)), Q90.1 (Trisomy 21, mosaicism (mitotic nondisjunction)), Q90.2 (Trisomy 21, translocation), Q90.9 (Down syndrome, unspecified).
Are additional codes required with Q90?
Yes, when using Q90 you should also code: code(s) to identify any associated degree of intellectual disabilities (F70-F79).
What are the UMLS CUIs for Q90?
Q90 is linked to 1 UMLS Concept Unique Identifier: C0013080. 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.