R79.81
R79.81: Abnormal blood-gas level
Billable / specific codeICD-10-CM
R79.81 is a billable, specific ICD-10-CM code for abnormal blood-gas level. It is valid for submission on a claim.
Check R79.81 with the rest of the claim: free scrubberExcludes1 inherited from the categories above R79.81
A category’s note binds every code beneath it.
Written on R79: Other abnormal findings of blood chemistry
- asymptomatic hyperuricemia (E79.0)
- hypoglycemia NOS (E16.2)
- neonatal hypoglycemia (P70.3-P70.4)
- specific findings indicating disorder of amino-acid metabolism (E70-E72)
- specific findings indicating disorder of carbohydrate metabolism (E73-E74)
- specific findings indicating disorder of lipid metabolism (E75.-)
Excludes2 inherited from the categories above R79.81
Not part of this code, but both may be coded when both are present.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
R79.81 is named in 5 Medicare coverage policies: 5 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
- A57224Billing and Coding: Respiratory Care
- A58575Billing and Coding: Respiratory Pathogen Panel Testing
- A58577Billing and Coding: Respiratory Pathogen Panel Testing
Alphabetic index entries that lead here
- Abnormal, abnormality, abnormalities›blood-gas level
- Abnormal, abnormality, abnormalities›chemistry, blood›gas level
Code history
Unchanged in every release from FY2024 to FY2027.