P74.31 — Hyperkalemia of newborn
Is P74.31 billable?
Yes — P74.31 is billable for FY2027. P74.31 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. P74.31 may be submitted for encounters from October 1, 2026 through September 30, 2027.
P74.31 at a glance
| Code | P74.31 |
|---|---|
| Description | Hyperkalemia of newborn |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does P74.31 group to?
P74.31 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.
- 791Prematurity with Major Problemsmedical
How is P74.31 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to P74.31. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Disturbance › potassium balance, newborn › hyperkalemia (s)
- Disturbance › electrolyte › newborn, transitory › potassium balance › hyperkalemia (s)
- Imbalance › electrolyte › neonatal, transitory NEC › potassium › hyperkalemia
Excludes2 — not included here — inherited from Chapter 16
The conditions below are not part of P74.31, but a patient may have both at the same time. When documentation supports it, P74.31 and the excluded code may both be reported.
How long has P74.31 existed?
P74.31 first appears in FY2019.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.