P91.9 — Disturbance of cerebral status of newborn, unspecified

BillableUnspecified

Is P91.9 billable?

Yes, but P91.9 is an unspecified code. P91.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, P91.9 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 P91.9 — the more specific alternatives are listed below.

More specific alternatives

P91.9 at a glance

Code	P91.9
Description	Disturbance of cerebral status of newborn, unspecified
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Which MS-DRGs does P91.9 group to?

P91.9 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 P91.9 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to P91.9. They show the wording a clinician may have documented, which often differs from the Tabular description.

Disturbance › cerebral › status, newborn (s)

Excludes2 — not included here — inherited from Chapter 16

The conditions below are not part of P91.9, but a patient may have both at the same time. When documentation supports it, P91.9 and the excluded code may both be reported.

congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
tetanus neonatorum (A33)

How long has P91.9 existed?

P91.9 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.