| ICD-10 Code | Description |
| P05.10 | Newborn small for gestational age, unspecified weight |
| P05.11 | Newborn small for gestational age, less than 500 grams |
| P05.12 | Newborn small for gestational age, 500-749 grams |
| P05.13 | Newborn small for gestational age, 750-999 grams |
| P05.14 | Newborn small for gestational age, 1000-1249 grams |
| P05.15 | Newborn small for gestational age, 1250-1499 grams |
| P05.16 | Newborn small for gestational age, 1500-1749 grams |
| P05.17 | Newborn small for gestational age, 1750-1999 grams |
| P05.18 | Newborn small for gestational age, 2000-2499 grams |
| P05.19 | Newborn small for gestational age, other |
