P05.18 — Newborn small for gestational age, 2000-2499 grams

Billable

Is P05.18 billable?

Yes — P05.18 is billable for FY2027. P05.18 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. P05.18 may be submitted for encounters from October 1, 2026 through September 30, 2027.

P05.18 at a glance

Code	P05.18
Description	Newborn small for gestational age, 2000-2499 grams
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Which MS-DRGs does P05.18 group to?

P05.18 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.

795Normal Newbornmedical

How is P05.18 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to P05.18. They show the wording a clinician may have documented, which often differs from the Tabular description.

Small-for-dates › with weight of › 2000-2499 grams (infant)

Excludes2 — not included here — inherited from Chapter 16

The conditions below are not part of P05.18, but a patient may have both at the same time. When documentation supports it, P05.18 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 P05.18 existed?

P05.18 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.

Which conditions are coded to P05.18?

ICD-10 code for Small-for-dates