ICD-10-CM 2027
ICD-10 code for marker chromosomes extra
From the official ICD-10-CM alphabetic index entry “Extra › marker chromosomes (normal individual)”. Page updated September 29, 2026.
About coding marker chromosomes extra
The ICD-10-CM code for marker chromosomes extra is Q92.61 (Marker chromosomes in normal individual). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on Q92.61.
Within Q92.6 (marker chromosomes), Q92.61 is specifically for marker chromosomes in normal individual. Related codes cover in abnormal individual (Q92.62).
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.
More specific marker chromosomes extra codes (official index)
- in abnormal individual Q92.62 — Marker chromosomes in abnormal individual
Common questions about marker chromosomes extra ICD-10 codes
What is the ICD-10 code for marker chromosomes extra?
- Q92.61 — Marker chromosomes in normal individual. More specific codes apply when the documentation supports them: Q92.62.
Is Q92.61 billable?
- Yes. Q92.61 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q92.61 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q92.61 as a principal diagnosis.
Is Q92.61 a CC or MCC?
- No. Q92.61 is neither a CC nor an MCC under MS-DRG v44.0.