R73.9 vs R79
R73.9 (Hyperglycemia, unspecified) compared with R79 (Other abnormal findings of blood chemistry), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. R79 carries an Excludes2 note covering R73.9: “hyperglycemia NOS (R73.9)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| R73.9Hyperglycemia, unspecified | R79Other abnormal findings of blood chemistry | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) |
| Definition | Hyperglycemia, unspecified is a billable ICD-10-CM diagnosis code (R73.9). | Other abnormal findings of blood chemistry is a non-billable ICD-10-CM category code (R79). |
| Use additional code | — | code to identify any retained foreign body, if applicable (Z18.-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources