P55: Hemolytic disease of newborn
Codes under P55 (Hemolytic disease of newborn). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| P55.0 | Rh isoimmunization of newborn | ✓ |
| P55.0 | Rh isoimmunization of newborn | ✓ |
| P55.1 | ABO isoimmunization of newborn | ✓ |
| P55.1 | ABO isoimmunization of newborn | ✓ |
| P55.8 | Other hemolytic diseases of newborn | ✓ |
| P55.8 | Other hemolytic diseases of newborn | ✓ |
| P55.9 | Hemolytic disease of newborn, unspecified | ✓ |
| P55.9 | Hemolytic disease of newborn, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code P55?
P55 is an ICD-10-CM category covering Hemolytic disease of newborn. It contains 8 more specific diagnosis codes, 8 of which are billable.
Is P55 a billable code?
No — P55 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example P55.0 — Rh isoimmunization of newborn). 8 of the 8 codes under P55 are billable.
What codes fall under P55?
P55 includes P55.0, P55.0, P55.1, P55.1, P55.8, plus 3 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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