P03.819 — NB aff by abnlt in fetal heart rate or rhym, unsp time onset

P03.819 is the ICD-10-CM 2025 code for NB aff by abnlt in fetal heart rate or rhym, unsp time onset. Newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm, unspecified as to time of onset. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.

Yes, P03.819 is a billable / specific ICD-10-CM code, meaning it can be used by clinicians and hospitals as a primary or secondary diagnosis on claims and electronic health records.

P03.819 belongs to the chapter "Certain conditions originating in the perinatal period" (codes P00-P96). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.

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