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E08.3392 vs P70.2

E08.3392 (Diabetes mellitus due to underlying condition with moderate nonproliferative diabetic retinopathy without macular edema, left eye) 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

E08.3392
Diabetes mellitus due to underlying condition with moderate nonproliferative diabetic retinopathy without macular edema, left eye
↔
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. E08.3392 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

E08.3392Diabetes mellitus due to underlying condition with moderate nonproliferative diabetic retinopathy without macular edema, left eyeP70.2Neonatal diabetes mellitus
Billing statusBillableBillable
ClassificationE00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89)P00-P96 — Certain Conditions Originating in the Perinatal Period (P00-P96)
DefinitionDiabetes mellitus due to underlying condition with moderate nonproliferative diabetic retinopathy without macular edema, left eye is a billable ICD-10-CM diagnosis code (E08.3392).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 E08.33 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 to identify control using:
injectable non-insulin antidiabetic drugs (Z79.85)
insulin (Z79.4)
—
Code first
the underlying condition, such as:
congenital rubella (P35.0)
—
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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