P55.0 – Rh isoimmunization of newborn
ICD-10-CM 2027 diagnosis code · Hemorrhagic and hematological disorders of newborn
ICD-10-CM code
P55.0
- Code
P55.0(claims format:P550)- Description
- Rh isoimmunization of newborn
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 16. Certain conditions originating in the perinatal period (P00-P96)
- Block
- P50-P61 Hemorrhagic and hematological disorders of newborn
- Parent codes
- P55
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block P50-P61
Index terms for P55.0
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Rh, hemolytic disease
- Icterus, gravis, newborn
- Anemia, newborn, due to, Rh
- Erythroblastosis, due to, Rh
- Incompatibility, Rh, newborn
- Isoimmunization NEC, newborn, Rhesus
- Antibodies, maternal, anti-D, newborn
- Rh, negative mother affecting newborn
- Rh, incompatibility, immunization or sensitization, newborn
- Jaundice, newborn, due to or associated with, Rh, antibodies
- Disease, diseased, hemolytic, due to or with, Rh negative mother
- Disease, diseased, hemolytic, due to or with, incompatibility, Rh
- Jaundice, newborn, due to or associated with, Rh, isoimmunization
- Jaundice, newborn, due to or associated with, Rh, incompatibility, maternal/fetal
- Jaundice, newborn, due to or associated with, hemolytic disease, Rh isoimmunization
Related codes in P55
Frequently asked questions
What is ICD-10 code P55.0?
P55.0 is the ICD-10-CM code for rh isoimmunization of newborn, in the block P50-P61 (Hemorrhagic and hematological disorders of newborn).
Is P55.0 a billable code?
Yes. P55.0 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does P55.0 belong to?
It belongs to category P55 – Hemolytic disease of newborn.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.