P93.0
Grey baby syndrome
P93.0 (also written P930) is a billable ICD-10-CM diagnosis code for grey baby syndrome. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 2 codes in category P93 (Reactions and intoxications due to drugs administered to newborn). The Alphabetic Index lists it under 5 entries. Its coding notes include 4 Excludes1 entries and 5 Excludes2 entries.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
Chapter 16 codes are never used on the maternal record, and chapter 15 codes are never used on the newborn record. Chapter 16 codes can be used for life if the condition persists.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
- jaundice due to drugs or toxins transmitted from mother or given to newborn (P58.4-)
- reactions and intoxications from maternal opiates, tranquilizers and other medication (P04.0-P04.1, P04.4-)
- withdrawal symptoms from maternal use of drugs of addiction (P96.1)
- withdrawal symptoms from therapeutic use of drugs in newborn (P96.2)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (5 notes)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- tetanus neonatorum (A33)
Care settings
How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.
Home Health Primary
Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the MMTA - Other clinical group.
Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026Hospital CC
Counts as a complication or comorbidity (CC) when reported as a secondary diagnosis on an inpatient claim. It does not count when the principal diagnosis is one of the 4 codes in its exclusion list. Some MS-DRGs also ignore a CC or MCC that defines the DRG.
Source: CMS MS-DRG Definitions Manual v44, effective October 1, 2026, Appendix CIncludes
Further defines or gives examples of the content of the category.
- reactions and intoxications due to drugs administered to fetus affecting newborn
Also from chapter/block level (1 note)
- conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later
Inclusion terms
Conditions classified to this code.
- Grey syndrome from chloramphenicol administration in newborn
Notes
Also from chapter/block level (1 note)
- Codes from this chapter are for use on newborn records only, never on maternal records
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 5 entries