ICD-10-CM 2027
ICD-10 code for Hyperbicarbonatemia
From the official ICD-10-CM alphabetic index entry “Hyperbicarbonatemia”. Page updated September 29, 2026.
About coding Hyperbicarbonatemia
The ICD-10-CM code for Hyperbicarbonatemia is P74.41 (Alkalosis of newborn).
Within P74.4 (other transitory electrolyte disturbances of newborn), P74.41 is specifically for Alkalosis of newborn. Related codes cover disturbances of chlorine balance of newborn (P74.42) and other transitory electrolyte disturbance of newborn (P74.49).
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 794 (Neonate with Other Significant Problems, relative weight 1.4935), 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 Hyperbicarbonatemia ICD-10 codes
What is the ICD-10 code for Hyperbicarbonatemia?
- P74.41 — Alkalosis of newborn.
Is P74.41 billable?
- Yes. P74.41 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can P74.41 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict P74.41 as a principal diagnosis.
Is P74.41 a CC or MCC?
- P74.41 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.