R73.01 is the authoritative medical code for Impaired fasting glucose. This classification is used in medical billing and clinical recording to specify the clinical criteria for impaired fasting glucose (ICD-10-CM R73.01), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Impaired fasting glucose is a billable ICD-10-CM diagnosis code R73.01. Inclusion terms: Elevated fasting glucose. Excludes1 (not coded here): 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-; diabetes mellitus in pregnancy, childbirth and the puerperium O24.-; neonatal disorders P70.0-P70.2; postsurgical hypoinsulinemia E89.1. Excludes2 (not included here): abnormal findings on antenatal screening of mother O28.-; abnormalities of lipids E78.-; abnormalities of platelets and thrombocytes D69.-; abnormalities of white blood cells classified elsewhere D70-D72; coagulation hemorrhagic disorders D65-D68; diagnostic abnormal findings classified elsewhere - see Alphabetical Index; hemorrhagic and hematological disorders of newborn P50-P61.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for R73.01 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- 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-
- diabetes mellitus in pregnancy, childbirth and the puerperium O24.-
- neonatal disorders P70.0-P70.2
- postsurgical hypoinsulinemia E89.1
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- abnormal findings on antenatal screening of mother O28.-
- abnormalities of lipids E78.-
- abnormalities of platelets and thrombocytes D69.-
- abnormalities of white blood cells classified elsewhere D70-D72
- coagulation hemorrhagic disorders D65-D68
- diagnostic abnormal findings classified elsewhere - see Alphabetical Index
- hemorrhagic and hematological disorders of newborn P50-P61
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with R73.01?
Per official ICD-10-CM Excludes1 instructions, R73.01 must not be reported together with: abnormal glucose in pregnancy (O99.81-); diabetes mellitus (E08-E13); dysmetabolic syndrome X (E88.81-); gestational diabetes (O24.4-).
Can R73.01 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, R73.01 and the following are not considered part of each other and may both be reported when both conditions are present: abnormal findings on antenatal screening of mother (O28.-); abnormalities of lipids (E78.-); abnormalities of platelets and thrombocytes (D69.-); abnormalities of white blood cells classified elsewhere (D70-D72).
What conditions are included under R73.01?
Impaired fasting glucose includes: Elevated fasting glucose.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to R73.01 in its code family, with their registry titles.
- R73 — Elevated blood glucose level
- R73.0 — Abnormal glucose
- R73.02 — Impaired glucose tolerance (oral)
- R73.03 — Prediabetes
- R73.09 — Other abnormal glucose
- R73.9 — Hyperglycemia, unspecified
Indexed Clinical Terms (2)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Elevated, elevation, fasting glucose
- Impaired, impairment (function), fasting glucose