R73.03: Prediabetes
Billable ICD-10-CM code, FY2027
What ICD-10-CM says
Includes
- Latent diabetes
Notes at R73.0, Abnormal glucose (they apply to every code under it)
Excludes1 (never coded with R73.03)
- abnormal glucose in pregnancy (O99.81-)
- diabetes mellitus (E08-E13)
- dysmetabolic syndrome X (E88.81-)
- gestational diabetes (O24.4-)
- glycosuria (R81)
- hypoglycemia (E16.2)
- type 1 diabetes mellitus, presymptomatic (E10.A-)
What R73.03 covers
R73.03 is for prediabetes, when blood glucose is above normal but the provider has not diagnosed diabetes. It includes latent diabetes. Primary care and endocrinology use it often.
Its siblings are impaired fasting glucose (R73.01), impaired glucose tolerance (R73.02) and other abnormal glucose (R73.09). The provider's documented term decides which one applies.
Billing and coding notes
The R73.0 subcategory has an excludes1 for diabetes mellitus (E08-E13), so R73.03 is never reported with a diabetes code. Once diabetes is diagnosed, the E code replaces R73.03.
The excludes1 list also covers abnormal glucose in pregnancy (O99.81-), gestational diabetes (O24.4-), hypoglycemia (E16.2) and presymptomatic type 1 diabetes (E10.A-).
Related codes under R73.0
Questions about R73.03
Can R73.03 and E11.9 be coded together?
No. Diabetes mellitus (E08-E13) is an excludes1 at R73.0. A patient who has diabetes is not also coded with prediabetes.
What is the difference between R73.03 and R73.01?
R73.03 is prediabetes. R73.01 is impaired fasting glucose. Use the term the provider documents.
ICD-10-CM in CloudMedico
In CloudMedico, a visit's diagnoses come from the current ICD-10-CM list. For US practices, the visit flags a code that isn't billable on its date, and a superbill made from an invoice carries the visit's diagnoses.
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