P03.819 — Newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm, unspecified as to time of onset
Is P03.819 billable?
Yes, but P03.819 is an unspecified code. P03.819 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, P03.819 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting P03.819 — the more specific alternatives are listed below.
P03.819 at a glance
| Code | P03.819 |
|---|---|
| Description | Newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm, unspecified as to time of onset |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does P03.819 group to?
P03.819 sits in MDC 15 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 794Neonate with Other Significant Problemsmedical
How is P03.819 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to P03.819. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Arrhythmia › newborn › occurring before birth (auricle)(cardiac)(juvenile)(nodal)(reflex)(supraventricular)(transitory)(ventricle)
- Dysrhythmia › cardiac › newborn › occurring before birth
- Newborn › affected by › heart rate abnormalities › intrauterine (infant) (liveborn) (singleton)
Excludes1 — never code together — inherited from P03.81
The conditions below can never be reported together with P03.819 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- neonatal cardiac dysrhythmia (P29.1-)
Code first — inherited from P03
The underlying condition below must be sequenced before P03.819. P03.819 describes a manifestation and cannot be the principal or first-listed diagnosis.
- any current condition in newborn
Excludes2 — not included here — inherited from Chapter 16
The conditions below are not part of P03.819, but a patient may have both at the same time. When documentation supports it, P03.819 and the excluded code may both be reported.
Excludes2 — not included here — inherited from P03
The conditions below are not part of P03.819, but a patient may have both at the same time. When documentation supports it, P03.819 and the excluded code may both be reported.
- encounter for observation of newborn for suspected diseases and conditions ruled out (Z05.-)
How long has P03.819 existed?
P03.819 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
- FY2018Newborn (suspected to be) affected by abnormality in fetal (intrauterine) heart rate or rhythm, unspecified as to time of onsetNewborn affected by abnormality in fetal (intrauterine) heart rate or rhythm, unspecified as to time of onset
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.