2026 ICD-10-CM Diagnosis Code Q92.2Partial trisomy

ICD-10-CM Codes›Q00-Q99›Q90-Q99›Q92

ICD-10-CM Q92.2
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Q92.2 is a billable ICD-10-CM diagnosis code for partial trisomy. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Chromosomal abnormalities.

Code Identity

ICD-10-CM Code
Q92.2
Billable Status
Yes — Valid for Submission
Code Describes
Partial trisomy
Short Description
Partial trisomy
Same as the full description in the CMS dataset.
Parent Code
Q92
Other trisomies and partial trisomies of the autosomes, not elsewhere classified

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ90-Q99Chromosomal abnormalities, not elsewhere classified
CategoryQ92Other trisomies and partial trisomies of the autosomes, not elsewhere classified
This CodeQ92.2Partial trisomy

Present on Admission (POA)Billing

Q92.2 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • 10q partial trisomy syndrome
  • 11p partial trisomy syndrome
  • 11p15 duplication syndrome
  • 11q partial trisomy syndrome
  • 12q partial trisomy syndrome
  • 13q partial trisomy syndrome
  • 14q partial trisomy
  • 14q32 duplication syndrome
  • 15q overgrowth syndrome
  • 15q13.3 microduplication syndrome
  • 16p11.2p12.2 microduplication syndrome
  • 16p13.3 microduplication syndrome
  • 17p partial trisomy syndrome
  • 17p11.2 microduplication syndrome
  • 17q partial trisomy syndrome
  • 17q12 microduplication syndrome
  • 17q21.31 microduplication syndrome
  • 17q23.1-q23.2 duplication syndrome
  • 17q24-qter duplication syndrome
  • 19p13.3 microduplication syndrome
  • 20q partial trisomy
  • 20q11.2 microduplication syndrome
  • 22q partial trisomy
  • 2p partial trisomy syndrome
  • 2q partial trisomy syndrome
  • 2q23.1 microduplication syndrome
  • 3p partial trisomy syndrome
  • 3q partial trisomy syndrome
  • 4p partial trisomy syndrome
  • 4p16.3 microduplication syndrome
  • 4q partial trisomy syndrome
  • 6p partial trisomy syndrome
  • 6q partial trisomy syndrome
  • 7p partial trisomy
  • 7p22.1 microduplication syndrome
  • 7q partial trisomy
  • 7q11.23 microduplication syndrome
  • 8p23.1 duplication syndrome
  • 8q partial trisomy syndrome
  • 9p partial trisomy syndrome
  • 9q partial trisomy syndrome
  • Distal 22q11.2 microduplication syndrome
  • Distal duplication of chromosome 13
  • Distal duplication of chromosome 14
  • Distal duplication of chromosome 15
  • Distal trisomy 10q
  • Distal trisomy 12q
  • Distal trisomy 13q
  • Distal trisomy 17q
  • Distal trisomy 1p
  • Distal trisomy 1q
  • Distal trisomy 22q syndrome
  • Distal trisomy 3q
  • Distal trisomy 6p syndrome
  • Distal trisomy 7p syndrome
  • Distal trisomy 7q
  • Distal trisomy 8p
  • Distal trisomy 9p
  • Distal trisomy 9q
  • Duplication of part of long arm of chromosome 16
  • Duplication of part of short arm of chromosome 16
  • Medial duplication of chromosome 14
  • Medial duplication of long arm of chromosome 1
  • Medial duplication of long arm of chromosome 2
  • Medial duplication of long arm of chromosome 4
  • Medial duplication of long arm of chromosome 5
  • Medial duplication of long arm of chromosome 7
  • Medial duplication of long arm of chromosome 9
  • Medial duplication of short arm of chromosome 1
  • Mosaic 1q duplication
  • Non-distal trisomy 10q
  • Non-distal trisomy 13q
  • Non-distal trisomy 9q
  • Partial duplication of long arm of chromosome 15
  • Partial trisomy 21 in Down's syndrome
  • Partial trisomy of chromosome 1
  • Partial trisomy of chromosome 10
  • Partial trisomy of chromosome 11
  • Partial trisomy of chromosome 12
  • Partial trisomy of chromosome 13
  • Partial trisomy of chromosome 14
  • Partial trisomy of chromosome 15
  • Partial trisomy of chromosome 16
  • Partial trisomy of chromosome 17
  • Partial trisomy of chromosome 18
  • Partial trisomy of chromosome 19
  • Partial trisomy of chromosome 2
  • Partial trisomy of chromosome 20
  • Partial trisomy of chromosome 21
  • Partial trisomy of chromosome 22
  • Partial trisomy of chromosome 3
  • Partial trisomy of chromosome 4
  • Partial trisomy of chromosome 5
  • Partial trisomy of chromosome 6
  • Partial trisomy of chromosome 7
  • Partial trisomy of chromosome 8
  • Partial trisomy of chromosome 9
  • Partial trisomy of long arm of chromosome 1
  • Partial trisomy of long arm of chromosome 5
  • Partial trisomy of short arm of chromosome 1
  • Partial trisomy of short arm of chromosome 19
  • Partial trisomy of short arm of chromosome 8
  • PMP22-RAI1 contiguous gene duplication syndrome
  • Proximal 16p11.2 microduplication syndrome
  • Proximal duplication of chromosome 14
  • Proximal duplication of chromosome 15
  • Proximal duplication of long arm of chromosome 1
  • Proximal duplication of long arm of chromosome 10
  • Proximal duplication of long arm of chromosome 11
  • Proximal duplication of long arm of chromosome 12
  • Proximal duplication of long arm of chromosome 16
  • Proximal duplication of long arm of chromosome 17
  • Proximal duplication of long arm of chromosome 2
  • Proximal duplication of long arm of chromosome 3
  • Proximal duplication of long arm of chromosome 4
  • Proximal duplication of long arm of chromosome 5
  • Proximal duplication of long arm of chromosome 6
  • Proximal duplication of long arm of chromosome 7
  • Proximal duplication of long arm of chromosome 8
  • Proximal duplication of long arm of chromosome 9
  • Proximal duplication of short arm of chromosome 1
  • Proximal duplication of short arm of chromosome 2
  • Proximal duplication of short arm of chromosome 3
  • Proximal duplication of short arm of chromosome 6
  • Proximal duplication of short arm of chromosome 7
  • Proximal duplication of short arm of chromosome 8
  • Proximal duplication of short arm of chromosome 9
  • Trisomy 10
  • Trisomy 10p
  • Trisomy 12
  • Trisomy 22

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Less than whole arm duplicated
  • Whole arm or more duplicated

Type 1 Excludes

  • partial trisomy due to unbalanced translocation Q92.5

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Trisomy(syndrome)
      • chromosome specified NEC
        • partial

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MAL009
Chromosomal abnormalities
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Trisomy 10

    a chromosomal abnormality consisting of the presence of a third copy of chromosome 10 in somatic cells.

  • Trisomy 12

    a chromosomal abnormality consisting of the presence of a third copy of chromosome 12 in somatic cells.

  • Chimpanzee Trisomy 22|Chimpanzee Down Syndrome

    a condition resulting from the presence of an extra copy of chromosome 22 in chimpanzees. the condition is in many respects similar to trisomy 21 in humans.

  • Trisomy 22

    a chromosomal abnormality consisting of the presence of a third copy of chromosome 22 in somatic cells.

Patient EducationClinical

Genetic Disorders

Genetic disorders are health conditions caused by changes (also called mutations or variants) in your genes. Genes are parts of DNA found in your cells that carry instructions for how your body grows, develops, and functions. Many genes tell your body how to make proteins, which are needed for your body to work properly.

The full article covers:

  • What are genetic disorders?
  • What causes genetic disorders?
  • What are the types of genetic disorders?
  • What are the different ways a genetic disorder can be inherited?
  • How are genetic disorders diagnosed?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert Q92.2 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
758.5 Autosomal anomalies NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Q92.2Overview

Is Q92.2 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report partial trisomy on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Is Q92.2 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for partial trisomy on inpatient claims.

What is the ICD-9 equivalent of Q92.2?

Under the General Equivalence Mappings, partial trisomy converts to ICD-9-CM 758.5 (autosomal anomalies NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.