Is P56.9 a billable ICD-10-CM code?

No. P56.9 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does P56.9 sit in the tabular list?

Certain conditions originating in the perinatal period (P00-P96), in the block Hemorrhagic and hematological disorders of newborn (P50-P61).

What cannot be coded together with P56.9?

P56.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above P56.9 (P56) and apply to it just the same.

P56.9

P56.9 — Hydrops fetalis due to other and unspecified hemolytic disease

Non-billable headerICD-10-CM

P56.9 is a non-billable header ICD-10-CM code for hydrops fetalis due to other and unspecified hemolytic disease. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 inherited from the categories above P56.9

These are not written on P56.9, but they bind it: a note on a category applies to every code beneath it. Billing P56.9 with anything listed here is a denial.

Written on P56 — Hydrops fetalis due to hemolytic disease

hydrops fetalis NOS (P83.2)

Other codes that can never be billed with P56.9

These codes carry an Excludes1 note pointing at P56.9. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading P56.9 alone.

P83Other conditions of integument specific to newborn

Risk adjustment

P56.9 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 history

P56.9 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead P56.9

2 child codes. Green means billable.

Related codes at this level

Codes that share P56. If P56.9 is not quite right, the correct code is usually one of these.

P56.0Hydrops fetalis due to isoimmunization

Questions about P56.9

Is P56.9 a billable ICD-10-CM code?: No. P56.9 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does P56.9 sit in the tabular list?: Certain conditions originating in the perinatal period (P00-P96), in the block Hemorrhagic and hematological disorders of newborn (P50-P61).
What cannot be coded together with P56.9?: P56.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above P56.9 (P56) and apply to it just the same.