O36.0

Non-billable

Maternal care for rhesus isoimmunization

O36.0 is the ICD-10-CM code for Maternal care for rhesus isoimmunization. It is a non-billable category code — use a more specific child code such as O36.01 for billing.

Status
Header (non-billable)
Chapter
O00-O9A
Parent
O36
Subcodes
2
Edition
FY2026

O00-O9A Pregnancy, childbirth and the puerperium

What this means — in plain language

MedlinePlus · NIH

What is the Rh factor? There are four major blood types: A, B, O, and AB. The types are based on substances found on your blood cells. Your blood type also has a positive or negative sign. This is called Rh factor, which is a protein. If your blood cells have this protein, you are Rh-positive. If you don't, you are Rh-negative. Rh factor is inherited (passed down through families). Most people are Rh-positive,…

Read more about Rh Incompatibility at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • Maternal care for Rh incompatibility (with hydrops fetalis)

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Frequently asked questions

What is ICD-10 code O36.0?
O36.0 is the ICD-10-CM code for "Maternal care for rhesus isoimmunization". It falls under O00-O9A Pregnancy, childbirth and the puerperium.
Is O36.0 a billable code?
No — O36.0 is a non-billable header code. Use a more specific child code (such as O36.01) for billing.
What are the subcodes of O36.0?
O36.0 has 2 more specific child codes, including O36.01, O36.09.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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