ICD-10-CM 2027
ICD-10 code for late metabolic acidosis newborn
From the official ICD-10-CM alphabetic index entry “Newborn (infant) (liveborn) (singleton) › late metabolic acidosis”. Page updated September 29, 2026.
About coding late metabolic acidosis newborn
The ICD-10-CM code for late metabolic acidosis newborn is P74.0 (Late metabolic acidosis of newborn).
Within P74 (other transitory neonatal electrolyte and metabolic disturbances), P74.0 is specifically for late metabolic acidosis of newborn. Related codes cover Dehydration of newborn (P74.1), disturbances of sodium balance of newborn (P74.2), disturbances of potassium balance of newborn (P74.3), other transitory electrolyte disturbances of newborn (P74.4), transitory tyrosinemia of newborn (P74.5), transitory hyperammonemia of newborn (P74.6), other transitory metabolic disturbances of newborn (P74.8) and transitory metabolic disturbance of newborn, unspecified (P74.9).
Don't report P74.0 together with the conditions in its Excludes1 note: (fetal) metabolic acidosis of newborn (P19).
As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" MS-DRG of its family, unless the principal diagnosis excludes it.
Don't confuse with (Excludes1 for P74.0)
- (fetal) metabolic acidosis of newborn (P19)
Common questions about late metabolic acidosis newborn ICD-10 codes
What is the ICD-10 code for late metabolic acidosis newborn?
- P74.0 — Late metabolic acidosis of newborn.
Is P74.0 billable?
- Yes. P74.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can P74.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict P74.0 as a principal diagnosis.
Is P74.0 a CC or MCC?
- P74.0 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.