10ICD Code Hub

R73.0

Header — not billable

Abnormal glucose

The ICD-10 code for abnormal glucose is R73.0.

R73.0 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 4 more specific codes below.

Clinical notes

Excludes1 (not coded here)

An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).

  • 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-)

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Child codes under R73.0

Related codes in this category