ICD-10 Code for Light-for-dates

The default ICD-10-CM 2027 code for light-for-dates (infant) is P05.00 – Newborn light for gestational age, unspecified weight. More specific codes depend on the details documented, as listed in the official index (11 codes, 10 billable).

Main code: P05.00 – Newborn light for gestational age, unspecified weight
Billable: Yes

Index entries for Light-for-dates

with weight of
- 499 grams or less – P05.01
- 500-749 grams – P05.02
- 750-999 grams – P05.03
- 1000-1249 grams – P05.04
- 1250-1499 grams – P05.05
- 1500-1749 grams – P05.06
- 1750-1999 grams – P05.07
- 2000-2499 grams – P05.08
- 2500 grams and over – P05.09
specified NEC – P05.09
and small-for-dates – see Small for dates
affecting management of pregnancy – O36.59- (header)

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.