Is Q56 a billable ICD-10-CM code?

No. Q56 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does Q56 sit in the tabular list?

Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations of genital organs (Q50-Q56).

What cannot be coded together with Q56?

Q56 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

Q56

Q56 — Indeterminate sex and pseudohermaphroditism

Non-billable headerICD-10-CM

Q56 is a non-billable header ICD-10-CM code for indeterminate sex and pseudohermaphroditism. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

46,XX true hermaphrodite (Q99.1)
androgen insensitivity syndrome (E34.5-)
chimera 46,XX/46,XY true hermaphrodite (Q99.0)
female pseudohermaphroditism with adrenocortical disorder (E25.-)
pseudohermaphroditism with specified chromosomal anomaly (Q96-Q99)
pure gonadal dysgenesis (Q99.1)

Other codes that can never be billed with Q56

These codes carry an Excludes1 note pointing at Q56. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Q56 alone.

E25Adrenogenital disorders

Risk adjustment

Q56 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead Q56

5 child codes. Green means billable.

Questions about Q56

Is Q56 a billable ICD-10-CM code?: No. Q56 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Q56 sit in the tabular list?: Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations of genital organs (Q50-Q56).
What cannot be coded together with Q56?: Q56 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.