ICD-10-CM 2027
ICD-10 code for Birthweight low
From the official ICD-10-CM alphabetic index entry “Low › birthweight (2499 grams or less)”. Page updated September 29, 2026.
About coding Birthweight low
The ICD-10-CM code for Birthweight low is P07.10 (Other low birth weight newborn, unspecified weight). The official index lists 9 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on P07.10.
Within P07.1, choose P07.10 (unspecified weight) only when documentation doesn't support a more specific option: 1000-1249 grams (P07.14), 1250-1499 grams (P07.15), 1500-1749 grams (P07.16), 1750-1999 grams (P07.17) and 2000-2499 grams (P07.18).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 792 (Prematurity without Major Problems, relative weight 2.4785), in MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Birthweight low codes (official index)
- with weight of
- 1000-1249 grams P07.14 — Other low birth weight newborn, 1000-1249 grams
- 1250-1499 grams P07.15 — Other low birth weight newborn, 1250-1499 grams
- 1500-1749 grams P07.16 — Other low birth weight newborn, 1500-1749 grams
- 1750-1999 grams P07.17 — Other low birth weight newborn, 1750-1999 grams
- 2000-2499 grams P07.18 — Other low birth weight newborn, 2000-2499 grams
- extreme (999 grams or less) P07.00 — Extremely low birth weight newborn, unspecified weight
- with weight of
- 499 grams or less P07.01 — Extremely low birth weight newborn, less than 500 grams
- 500-749 grams P07.02 — Extremely low birth weight newborn, 500-749 grams
- 750-999 grams P07.03 — Extremely low birth weight newborn, 750-999 grams
- for gestational age
Common questions about Birthweight low ICD-10 codes
What is the ICD-10 code for Birthweight low?
- P07.10 — Other low birth weight newborn, unspecified weight. More specific codes apply when the documentation supports them: P07.14, P07.15, P07.16, P07.17 and others below.
What is the ICD-10 code for extreme birthweight low?
- P07.00 — Extremely low birth weight newborn, unspecified weight.
Is P07.10 billable?
- Yes. P07.10 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can P07.10 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict P07.10 as a principal diagnosis.
Is P07.10 a CC or MCC?
- No. P07.10 is neither a CC nor an MCC under MS-DRG v44.0.