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E09.37 vs E10

E09.37 (Drug or chemical induced diabetes mellitus with diabetic macular edema, resolved following treatment) compared with E10 (Type 1 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

E09.37
Drug or chemical induced diabetes mellitus with diabetic macular edema, resolved following treatment
↔
E10
Type 1 diabetes mellitus

Not coded here — these two are mutually exclusive.

“type 1 diabetes mellitus (E10.-)”

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. E09.37 carries an Excludes1 note covering E10: “type 1 diabetes mellitus (E10.-)”

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

E09.37Drug or chemical induced diabetes mellitus with diabetic macular edema, resolved following treatmentE10Type 1 diabetes mellitus
Billing statusNon-billable headerNon-billable header

Report instead: E10.10, E10.11, E10.21, E10.22, E10.29

ClassificationE00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89)E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89)
DefinitionDrug or chemical induced diabetes mellitus with diabetic macular edema, resolved following treatment is a non-billable ICD-10-CM category code (E09.37).Type 1 diabetes mellitus is a non-billable ICD-10-CM category code (E10).
7th characterOne of the following 7th characters is to be assigned to code E09.37 to designate laterality of the disease:—
Includes—
brittle diabetes (mellitus)
diabetes (mellitus) due to autoimmune process
diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction
idiopathic diabetes (mellitus)
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