Elevated blood glucose level (R73) ICD-10-CM
The R73 code range covers elevated blood glucose level with 7 ICD-10-CM diagnosis codes. 5 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the R73 Range 7 codes · 5 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the R73 range.
Glucose Intolerance
A pathological state in which BLOOD GLUCOSE level is less than approximately 140 mg/100 ml of PLASMA at fasting, and above approximately 200 mg/100 ml plasma at 30-, 60-, or 90-minute during a GLUCOSE TOLERANCE TEST. This condition is seen frequently in DIABETES MELLITUS, but also occurs with other diseases and MALNUTRITION.
Hyperglycemia
Abnormally high BLOOD GLUCOSE level.
Prediabetic State
The time period before the development of symptomatic diabetes. For example, certain risk factors can be observed in subjects who subsequently develop INSULIN RESISTANCE as in type 2 diabetes (DIABETES MELLITUS, TYPE 2).
About the R73 Code Range
These codes describe elevated or abnormal blood glucose findings, including prediabetes. Hyperglycemia means high blood glucose.
R73.0 groups abnormal glucose findings. Its subdivisions distinguish impaired fasting glucose, impaired oral glucose tolerance, prediabetes, and other abnormal glucose. R73.9 describes hyperglycemia that is not further specified.
Questions About This Page
How many billable codes are in the R73 range?
Of the 7 codes in this range, 5 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the R73 range classify?
The range classifies elevated blood glucose level. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
