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E09.341 vs P70.2

E09.341 (Drug or chemical induced diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema) compared with P70.2 (Neonatal diabetes mellitus), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.

Relationship

Conflict

Excludes1 conflict

E09.341
Drug or chemical induced diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema
↔
P70.2
Neonatal diabetes mellitus

Not coded here — these two are mutually exclusive.

“neonatal diabetes mellitus (P70.2)”

An Excludes1 note means the two conditions cannot occur together, so the pair should not be reported for the same encounter. The sole exception is when the conditions are documented as unrelated to each other.

Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a

Can these codes be reported together?

No — do not report together. E09.341 carries an Excludes1 note covering P70.2: “neonatal diabetes mellitus (P70.2)”

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

E09.341Drug or chemical induced diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edemaP70.2Neonatal diabetes mellitus
Billing statusNon-billable headerBillable
ClassificationE00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89)P00-P96 — Certain Conditions Originating in the Perinatal Period (P00-P96)
DefinitionDrug or chemical induced diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema is a non-billable ICD-10-CM category code (E09.341).Neonatal diabetes mellitus is a billable ICD-10-CM diagnosis code (P70.2).
7th characterOne of the following 7th characters is to be assigned to codes in subcategory E09.34 to designate laterality of the disease:—
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 for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
code to identify control using:
injectable non-insulin antidiabetic drugs (Z79.85)
—
Code first
poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)
—
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources