Q92.6 – Marker chromosomes
ICD-10-CM 2027 diagnosis code · Chromosomal abnormalities, not elsewhere classified
- Code
Q92.6(claims format:Q926)- Description
- Marker chromosomes
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- Block
- Q90-Q99 Chromosomal abnormalities, not elsewhere classified
- Parent codes
- Q92
Billable codes under Q92.6
Q92.6 is a header code and cannot be used on claims. Choose the most specific code:
Notes for Q92.6
- Trisomies due to dicentrics
- Trisomies due to extra rings
- Trisomies due to isochromosomes
- Individual with marker heterochromatin
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Q92 – Other trisomies and partial trisomies of the autosomes, not elsewhere classified
- unbalanced translocations and insertions
Block Q90-Q99
- mitochondrial metabolic disorders (E88.4-)
Related codes in Q92
- Q92.0 – Whole chromosome trisomy, nonmosaicism (meiotic nondisjunction)Billable
- Q92.1 – Whole chromosome trisomy, mosaicism (mitotic nondisjunction)Billable
- Q92.2 – Partial trisomyBillable
- Q92.5 – Duplications with other complex rearrangementsBillable
- Q92.7 – Triploidy and polyploidyBillable
- Q92.8 – Other specified trisomies and partial trisomies of autosomesBillable
- Q92.9 – Trisomy and partial trisomy of autosomes, unspecifiedBillable
Frequently asked questions
What is ICD-10 code Q92.6?
Q92.6 is the ICD-10-CM code for marker chromosomes, in the block Q90-Q99 (Chromosomal abnormalities, not elsewhere classified).
Is Q92.6 a billable code?
No. Q92.6 is a header code with more specific child codes; report one of the billable codes listed above.
What category does Q92.6 belong to?
It belongs to category Q92 – Other trisomies and partial trisomies of the autosomes, not elsewhere classified.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.