MS-DRG 790 – Extreme Immaturity or Respiratory Distress Syndrome, Neonate
A Medical DRG in MDC 15 (Newborns & Other Neonates with Conditions Originating in Perinatal Period). Inpatient cases group to DRG 790 when the ICD-10-CM principal diagnosis is one of the 12 codes listed below. Its FY 2026 relative weight is 5.9435 with a geometric mean length of stay of 17.9 days.
The grouper first assigns the case to MDC 15 from the principal diagnosis and finds no qualifying operating-room procedure (this is a Medical DRG; ICD-10-PCS codes do not drive assignment here).
Principal Diagnosis Codes 12 codes · 2 categories
P07 Disorders of newborn related to short gestation and low birth weight, not elsewhere classified11 codes
- P07.00 Extremely low birth weight newborn, unspecified weight
- P07.01 Extremely low birth weight newborn, less than 500 grams
- P07.02 Extremely low birth weight newborn, 500-749 grams
- P07.03 Extremely low birth weight newborn, 750-999 grams
- P07.20 Extreme immaturity of newborn, unspecified weeks of gestation
- P07.21 Extreme immaturity of newborn, gestational age less than 23 completed weeks
- P07.22 Extreme immaturity of newborn, gestational age 23 completed weeks
- P07.23 Extreme immaturity of newborn, gestational age 24 completed weeks
- P07.24 Extreme immaturity of newborn, gestational age 25 completed weeks
- P07.25 Extreme immaturity of newborn, gestational age 26 completed weeks
- P07.26 Extreme immaturity of newborn, gestational age 27 completed weeks
P22 Respiratory distress of newborn1 code
- P22.0 Respiratory distress syndrome of newborn
Procedure Codes
Frequently Asked Questions
What is MS-DRG 790?
MS-DRG 790 (Extreme Immaturity or Respiratory Distress Syndrome, Neonate) is a medical DRG in MDC 15 (Newborns & Other Neonates with Conditions Originating in Perinatal Period). Its FY 2026 relative weight is 5.9435 with a geometric mean length of stay of 17.9 days.
How many diagnosis codes group to DRG 790?
12 ICD-10-CM principal diagnosis codes group to this DRG, spanning 2 three-character categories.
What is the relative weight of DRG 790?
The FY 2026 relative weight of this DRG is 5.9435, meaning reimbursement of roughly 5.94 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.
