ICD-10-CM 2027
ICD-10 code for fasting glucose elevated
From the official ICD-10-CM alphabetic index entry “Elevated, elevation › fasting glucose”. Page updated September 29, 2026.
About coding fasting glucose elevated
The ICD-10-CM code for fasting glucose elevated is R73.01 (Impaired fasting glucose).
Within R73.0 (abnormal glucose), R73.01 is specifically for impaired fasting glucose. Related codes cover impaired glucose tolerance (oral) (R73.02), Prediabetes (R73.03) and other abnormal glucose (R73.09).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 640 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC, relative weight 1.3395) and DRG 641 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC, relative weight 0.7865), in MDC 10 (Endocrine, Nutritional and Metabolic Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about fasting glucose elevated ICD-10 codes
What is the ICD-10 code for fasting glucose elevated?
- R73.01 — Impaired fasting glucose.
Is R73.01 billable?
- Yes. R73.01 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R73.01 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R73.01 as a principal diagnosis.
Is R73.01 a CC or MCC?
- No. R73.01 is neither a CC nor an MCC under MS-DRG v44.0.