ICD Code R74.0

ICD code R74.0 is a diagnosis used when blood tests show higher than normal levels of transaminase and lactic acid dehydrogenase (LDH) enzymes, but without a specific identified cause.

1. Patient presents with laboratory results showing elevated levels of transaminases (such as ALT and AST) and/or lactic acid dehydrogenase (LDH).

2. No specific underlying cause for the enzyme elevation is identified after appropriate clinical evaluation.

3. Absence of clinical or laboratory evidence pointing to a definitive diagnosis such as viral hepatitis, alcoholic liver disease, myocardial infarction, hemolysis, or other specific conditions known to elevate these enzymes.

4. Elevation is not attributable to medication, toxin exposure, or recent strenuous physical activity.

5. Patient may be asymptomatic or present with nonspecific symptoms such as mild fatigue or malaise, but without signs or symptoms clearly indicating a specific disease process.

6. Further diagnostic workup is either pending or inconclusive, and the elevation remains unexplained.

Relevant CPT codes that may be used to treat ICD code R74.0 include:

- 80076 (Hepatic function panel)

- 84460 (Alanine aminotransferase [ALT] [SGPT])

- 84450 (Aspartate aminotransferase [AST] [SGOT])

- 83615 (Lactic acid [blood])

- 82977 (Lactate dehydrogenase [LDH])

- 36415 (Collection of venous blood by venipuncture)

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