P70.3 vs R79
P70.3 (Iatrogenic neonatal hypoglycemia) compared with R79 (Other abnormal findings of blood chemistry), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. R79 carries an Excludes1 note covering P70.3: “neonatal hypoglycemia (P70.3-P70.4)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| P70.3Iatrogenic neonatal hypoglycemia | R79Other abnormal findings of blood chemistry | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | P00-P96 — Certain Conditions Originating in the Perinatal Period (P00-P96) | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) |
| Definition | Iatrogenic neonatal hypoglycemia is a billable ICD-10-CM diagnosis code (P70.3). | Other abnormal findings of blood chemistry is a non-billable ICD-10-CM category code (R79). |
| Includes | transitory endocrine and metabolic disturbances caused by the infant's response to maternal endocrine and metabolic factors, or its adjustment to extrauterine environment | — |
| Use additional code | — | code to identify any retained foreign body, if applicable (Z18.-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources