Disorders of newborn related to slow fetal growth and fetal malnutrition
In Disorders of newborn related to length of gestation and fetal growth (P05-P08), chapter 16: Certain Conditions Originating in the Perinatal Period
22 billable codes under P05: none are a CC or MCC; none map to an HCC.
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Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
- Section I.C.16.d Prematurity and Fetal Growth Retardation (page 73), covers P05
Code prematurity only when documented. Base P05 and P07 codes on recorded birth weight and estimated gestational age; when both are known, assign two P07 codes with birth weight sequenced before gestational age.
Other Chapter 16 topics:
- General Perinatal Rules (page 71)
- Observation and Evaluation of Newborns for Suspected Conditions not Found (page 73)
- Coding Additional Perinatal Diagnoses (page 73)
- Low birth weight and immaturity status (page 74)
- Bacterial Sepsis of Newborn (page 74)
- Stillbirth (page 74)
- COVID-19 Infection in Newborn (page 74)
All codes under P05
P05 can't be used on a claim. Pick a billable code below; grey headings group them.
- P05.0Newborn light for gestational age
- P05.00Newborn light for gestational age, unspecified weight
- P05.01Newborn light for gestational age, less than 500 grams
- P05.02Newborn light for gestational age, 500-749 grams
- P05.03Newborn light for gestational age, 750-999 grams
- P05.04Newborn light for gestational age, 1000-1249 grams
- P05.05Newborn light for gestational age, 1250-1499 grams
- P05.06Newborn light for gestational age, 1500-1749 grams
- P05.07Newborn light for gestational age, 1750-1999 grams
- P05.08Newborn light for gestational age, 2000-2499 grams
- P05.09Newborn light for gestational age, 2500 grams and over
- P05.1Newborn small for gestational age
- P05.10Newborn small for gestational age, unspecified weight
- P05.11Newborn small for gestational age, less than 500 grams
- P05.12Newborn small for gestational age, 500-749 grams
- P05.13Newborn small for gestational age, 750-999 grams
- P05.14Newborn small for gestational age, 1000-1249 grams
- P05.15Newborn small for gestational age, 1250-1499 grams
- P05.16Newborn small for gestational age, 1500-1749 grams
- P05.17Newborn small for gestational age, 1750-1999 grams
- P05.18Newborn small for gestational age, 2000-2499 grams
- P05.19Newborn small for gestational age, other
- P05.2Newborn affected by fetal (intrauterine) malnutrition not light or small for gestational age
- P05.9Newborn affected by slow intrauterine growth, unspecified
P05 MS-DRGs
As the principal diagnosis, the billable codes under P05 group to MS-DRG 794, 791, 793, or 795 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 794 Neonate with Other Significant Problems (11 of 22 codes)
- DRG 791 Prematurity with Major Problems (8 of 22 codes)
- DRG 793 Full Term Neonate with Major Problems (8 of 22 codes)
- DRG 795 Normal Newborn (3 of 22 codes)
Other codes that refer to P05
Notes on these codes point to P05.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Birth Weight
Birth weight is the first weight of your baby, taken just after being born. A low birth weight means that the baby is less than 5 pounds, 8 ounces. A high birth weight means that the baby is more than 8 pounds, 13 ounces.
Read more about birth weight on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.