Internal Medicine Coding Alert
Diagnosis Codes for Blood Tests
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Question: I am using 790.5 for elevated CPK and 790.6 (Other abnormal blood chemistry) for elevated MCV. Is this correct?
Arizona Subscriber
Codes for abnormal laboratory tests are also in the ICD-9 index under the heading ""Findings abnormal without diagnosis.""
CPK the abbreviation for creatine phosphokinase is an enzyme found predominantly in the muscles of the heart and brain. The code you are using 790.5 (Other nonspecific abnormal serum enzyme levels) for an elevated CPK is correct.
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