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ICD-10-CM 2027 diagnosis code

Q92.8Other specified trisomies and partial trisomies of autosomes

✓ Billable / specificPOA exempt

Q92.8 is a valid, billable ICD-10-CM code for other specified trisomies and partial trisomies of autosomes. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About Q92.8

Q92.8 is the ICD-10-CM diagnosis code for other specified trisomies and partial trisomies of autosomes. It belongs to category Q92 (other trisomies and partial trisomies of the autosomes, not elsewhere classified), block Q90-Q99 (chromosomal abnormalities, not elsewhere classified) and chapter 17 (congenital malformations, deformations, chromosomal abnormalities, and genetic disorders). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within Q92, choose Q92.8 (Other specified trisomies and partial trisomies of autosomes) only when documentation doesn't support a more specific option: whole chromosome trisomy, nonmosaicism (meiotic nondisjunction) (Q92.0), whole chromosome trisomy, mosaicism (mitotic nondisjunction) (Q92.1), partial trisomy (Q92.2), Duplications with other complex rearrangements (Q92.5), marker chromosomes (Q92.6), Triploidy and polyploidy (Q92.7) and trisomy and partial trisomy of autosomes, unspecified (Q92.9).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 758.5 (other conditions due to autosomal anomalies).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Duplications identified by fluorescence in situ hybridization (FISH)
  • Duplications identified by in situ hybridization (ISH)
  • Duplications seen only at prometaphase

Notes that apply from higher levels

Instructions written at a parent level also apply to Q92.8.

› From Q92 Other trisomies and partial trisomies of the autosomes, not elsewhere classified
Includes
  • unbalanced translocations and insertions
Excludes1
  • trisomies of chromosomes 13, 18, 21 (Q90-Q91)

Broader instructions also apply from Q90-Q99 Chromosomal abnormalities, not elsewhere classified and Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders.

Alphabetic index entries

12 entries

Terms in the official ICD-10-CM index that lead to Q92.8.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

MDC 23 · Factors Influencing Health Status and Other Contacts with Health Services

ICD-9-CM equivalent

Converter →
  • 758.5Other conditions due to autosomal anomaliesapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about Q92.8

Is Q92.8 billable?

Yes. Q92.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Q92.8 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict Q92.8 as a principal diagnosis.

Is Q92.8 a CC or MCC?

No. Q92.8 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does Q92.8 group to?

Q92.8 is used in the MS-DRG v44.0 logic for MS-DRG 951 (Other Factors Influencing Health Status). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for Q92.8?

The CMS General Equivalence Mappings map Q92.8 to ICD-9-CM 758.5.