Abnormal findings on examination of blood, without diagnosis
59 codes in this section
About Section R70-R79
Section R70-R79 (R70-R79) covers abnormal findings on examination of blood, without diagnosis. It sits within the Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified chapter (R00-R99). This section contains 59 ICD-10-CM codes, 44 billable diagnoses you can submit on a claim, and 15 non-billable header codes used to organize the hierarchy.
Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.
Codes in R70-R79
Grouped by 3-character root code. Click any code for full detail.
| R70.0 | Elevated erythrocyte sedimentation rate | Billable |
| R70.1 | Abnormal plasma viscosity | Billable |
| R71.0 | Precipitous drop in hematocrit | Billable |
| R71.8 | Other abnormality of red blood cells | Billable |
| R73.0 | Abnormal glucose | Header |
| R73.01 | Impaired fasting glucose | Billable |
| R73.02 | Impaired glucose tolerance (oral) | Billable |
| R73.03 | Prediabetes | Billable |
| R73.09 | Other abnormal glucose | Billable |
| R73.9 | Hyperglycemia, unspecified | Billable |
| R74.0 | Nonspecific elevation of levels of transaminase and lactic acid dehydrogenase [LDH] | Header |
| R74.01 | Elevation of levels of liver transaminase levels | Billable |
| R74.02 | Elevation of levels of lactic acid dehydrogenase [LDH] | Billable |
| R74.8 | Abnormal levels of other serum enzymes | Billable |
| R74.9 | Abnormal serum enzyme level, unspecified | Billable |
| R76.0 | Raised antibody titer | Billable |
| R76.1 | Nonspecific reaction to test for tuberculosis | Header |
| R76.11 | Nonspecific reaction to tuberculin skin test without active tuberculosis | Billable |
| R76.12 | Nonspecific reaction to cell mediated immunity measurement of gamma interferon antigen response without active tuberculosis | Billable |
| R76.8 | Other specified abnormal immunological findings in serum | Header |
| R76.81 | Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis | Billable |
| R76.89 | Other specified abnormal immunological findings in serum | Billable |
| R76.9 | Abnormal immunological finding in serum, unspecified | Billable |
| R77.0 | Abnormality of albumin | Billable |
| R77.1 | Abnormality of globulin | Billable |
| R77.2 | Abnormality of alphafetoprotein | Billable |
| R77.8 | Other specified abnormalities of plasma proteins | Billable |
| R77.9 | Abnormality of plasma protein, unspecified | Billable |
| R78.0 | Finding of alcohol in blood | Billable |
| R78.1 | Finding of opiate drug in blood | Billable |
| R78.2 | Finding of cocaine in blood | Billable |
| R78.3 | Finding of hallucinogen in blood | Billable |
| R78.4 | Finding of other drugs of addictive potential in blood | Billable |
| R78.5 | Finding of other psychotropic drug in blood | Billable |
| R78.6 | Finding of steroid agent in blood | Billable |
| R78.7 | Finding of abnormal level of heavy metals in blood | Header |
| R78.71 | Abnormal lead level in blood | Billable |
| R78.79 | Finding of abnormal level of heavy metals in blood | Billable |
| R78.8 | Finding of other specified substances, not normally found in blood | Header |
| R78.81 | Bacteremia | Billable |
| R78.89 | Finding of other specified substances, not normally found in blood | Billable |
| R78.9 | Finding of unspecified substance, not normally found in blood | Billable |
| R79.0 | Abnormal level of blood mineral | Billable |
| R79.1 | Abnormal coagulation profile | Billable |
| R79.8 | Other specified abnormal findings of blood chemistry | Header |
| R79.81 | Abnormal blood-gas level | Billable |
| R79.82 | Elevated C-reactive protein (CRP) | Billable |
| R79.83 | Abnormal findings of blood amino-acid level | Billable |
| R79.89 | Other specified abnormal findings of blood chemistry | Billable |
| R79.9 | Abnormal finding of blood chemistry, unspecified | Billable |
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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