ICD-10-CM P55.0 is the diagnosis code for Rh isoimmunization of newborn. This code falls under the section "Hemorrhagic and hematological disorders of newborn" within Chapter 16 — Certain conditions originating in the perinatal period (P00-P96). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where P55.0 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, P55.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
P55.0 is the ICD-10-CM diagnosis code for "Rh isoimmunization of newborn". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of P55.0 is P55 ("Hemolytic disease of newborn"). P55.0 provides a more specific classification within this category.
P55.0 is located in Section P50-P61 — "Hemorrhagic and hematological disorders of newborn" within Chapter 16 of the ICD-10-CM Tabular List.
Use P55.0 when the patients documented diagnosis matches "Rh isoimmunization of newborn" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Rh isoimmunization of newborn is P55.0.
Yes, P55.0 can be used as a primary diagnosis code since it is billable and specific.
P55.0 is in Chapter 16 of the ICD-10-CM Tabular List.
Yes, P55.0 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.