R73Elevated blood glucose level

R73 is the ICD-10-CM diagnosis code for elevated blood glucose level. It belongs to block R70-R79 (abnormal findings on examination of blood, without diagnosis) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: R73.0 (glucose) and R73.9 (unspecified).

Don't report R73 together with the conditions in its Excludes1 note: diabetes mellitus (E08-E13), diabetes mellitus in pregnancy, childbirth and the puerperium (O24.-), neonatal disorders (P70.0-P70.2) and postsurgical hypoinsulinemia (E89.1).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.