ICD-10-CM 2027
ICD-10 code for Grey syndrome
From the official ICD-10-CM alphabetic index entry “Grey syndrome (newborn)”. Page updated September 29, 2026.
About coding Grey syndrome
The ICD-10-CM code for Grey syndrome is P93.0 (Grey baby syndrome).
Within P93 (reactions and intoxications due to drugs administered to newborn), P93.0 is specifically for Grey baby syndrome. Related codes cover other reactions and intoxications due to drugs administered to newborn (P93.8).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
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 793 (Full Term Neonate with Major Problems, relative weight 4.2195), 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.
Common questions about Grey syndrome ICD-10 codes
What is the ICD-10 code for Grey syndrome?
- P93.0 — Grey baby syndrome.
Is P93.0 billable?
- Yes. P93.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can P93.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict P93.0 as a principal diagnosis.
Is P93.0 a CC or MCC?
- P93.0 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.