R73.9 — Hyperglycemia, unspecified
R73.9 is a billable, specific ICD-10-CM code for hyperglycemia, unspecified. It is valid for submission on a claim.
Excludes1 inherited from the categories above R73.9
These are not written on R73.9, but they bind it: a note on a category applies to every code beneath it. Billing R73.9 with anything listed here is a denial.
Other codes that can never be billed with R73.9
These codes carry an Excludes1 note pointing at R73.9. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading R73.9 alone.
Risk adjustment
R73.9 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
R73.9 is named in 9 Medicare coverage policies — 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56686Billing and Coding: HbA1c
- A60204Billing and Coding: MolDX: Biomarker Testing for Risk Stratification in Metabolic Dysfunction-Associated Steatotic Liver Disease and Metabolic Dysfunction-Associated Steatohepatitis
- A60205Billing and Coding: MolDX: Biomarker Testing in Metabolic Dysfunction-Associated Steatotic Liver Disease and Metabolic Dysfunction-Associated Steatohepatitis
- A60214Billing and Coding: MolDX: Biomarker Testing for Risk Stratification in Metabolic Dysfunction-Associated Steatotic Liver Disease and Metabolic Dysfunction-Associated Steatohepatitis
How R73.9 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to R73.9.
- Hyperglycemia, hyperglycemic(transient)
- Elevated, elevation›blood sugar
- Findings, abnormal, inconclusive, without diagnosis›blood sugar›high
- Sugar›blood›high(transient)
Code history
R73.9 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share R73. If R73.9 is not quite right, the correct code is usually one of these.
Questions about R73.9
- Is R73.9 a billable ICD-10-CM code?
- Yes. R73.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R73.9 sit in the tabular list?
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Abnormal findings on examination of blood, without diagnosis (R70-R79).
- What cannot be coded together with R73.9?
- R73.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above R73.9 (R73) and apply to it just the same.