Q92.6 — Marker chromosomes

Not billable

Is Q92.6 billable?

No — Q92.6 is a non-billable header code. Q92.6 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 2 billable codes beneath Q92.6.

Billable codes under this header

Q92.6 at a glance

Code	Q92.6
Description	Marker chromosomes
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Inclusion terms

Alternative wording in documentation that is classified to Q92.6.

Trisomies due to dicentrics
Trisomies due to extra rings
Trisomies due to isochromosomes
Individual with marker heterochromatin

Excludes1 — never code together — inherited from Q92

The conditions below can never be reported together with Q92.6 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

trisomies of chromosomes 13, 18, 21 (Q90-Q91)

Excludes2 — not included here — inherited from Chapter 17

The conditions below are not part of Q92.6, but a patient may have both at the same time. When documentation supports it, Q92.6 and the excluded code may both be reported.

inborn errors of metabolism (E70-E88)

Excludes2 — not included here — inherited from Q90-Q99

The conditions below are not part of Q92.6, but a patient may have both at the same time. When documentation supports it, Q92.6 and the excluded code may both be reported.

mitochondrial metabolic disorders (E88.4-)

What codes fall under Q92.6? (2)

How long has Q92.6 existed?

Q92.6 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.