Diagnosis Index entries containing back-references to R74.0: Elevated, elevation liver function test R79.89 ICD-10-CM Diagnosis Code R79.89 Findings, abnormal, inconclusive, without diagnosis - see also Abnormal lactic acid dehydrogenase R74.0 (LDH) SGOT R74.0 Transaminasemia R74.0
R74.8 is a billable ICD code used to specify a diagnosis of abnormal levels of other serum enzymes. A 'billable code' is detailed enough to be used to specify a medical diagnosis. The ICD code R748 is used to code Elevated alkaline phosphatase
948 Signs and symptoms without mcc. Diagnosis Index entries containing back-references to R74.8: ICD-10-CM Diagnosis Code R74.9 ICD-10-CM Diagnosis Code R79.89 ICD-10-CM Codes Adjacent To R74.8 Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
Raised antibody titer 2016 2017 2018 2019 2020 2021 Billable/Specific Code R76.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2021 edition of ICD-10-CM R76.0 became effective on October 1, 2020.
The 2022 edition of ICD-10-CM R74.0 became effective on October 1, 2021.
R74.0 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
I82.621 Acute embolism and thrombosis of deep veins of right upper extremity I82.622 Acute embolism and thrombosis of deep veins of left upper extremity I82.623 Acute embolism and thrombosis of deep veins of upper extremity, bilateral I82.629 Acute embolism and thrombosis of deep veins of unspecified upper extremity I82.701 Chronic embolism and thrombosis of unspecified veins of right upper extremity I82.702 Chronic embolism and thrombosis of unspecified veins of left upper extremity I82.703 Chronic embolism and thrombosis of unspecified veins of upper extremity, bilateral I82.709 Chronic embolism and thrombosis of unspecified veins of unspecified upper extremity I82.711 Chronic embolism and thrombosis of superficial veins of right upper extremity I82.712 Chronic embolism and thrombosis of superficial veins of left upper extremity I82.713 Chronic embolism and thrombosis of superficial veins of upper extremity, bilateral I82.719 Chronic embolism and thrombosis of superficial veins of unspecified upper extremity I82.721 Chronic embolism and thrombosis of deep veins of right upper extremity I82.722 Chronic embolism and thrombosis of deep veins of left upper extremity I82.723 Chronic embolism and thrombosis of deep veins of upper extremity, bilateral I82.729 Chronic embolism and thrombosis of deep veins of unspecified upper extremity I82.A11 Acute embolism and thrombosis of right axillary vein I82.A12 Acute embolism and thrombosis of left axillary vein I82.A13 Acute embolism and thrombosis of axillary vein, bilateral I82.A19 Acute embolism and thrombosis of unspecified axillary vein I82.A21 Chronic embolism and thrombosis of right axillary vein I82.A22 Chronic embolism and thrombosis of left axillary vein I82.A23 Chronic embolism and thrombosis of axillary vein, bilateral I82.A29 Chronic embolism and thrombosis of unspecified axillary vein I82.B11 Acute embolism and thrombosis of right subclavian vein I82.B12 Acute embolism and thrombosis of left subclavian vein I82.B13 Acute embolism and thrombosis of subclavian vein, bilateral I82.B19 Acute embolism and thrombosis of unspecified subclavian vein I82.B21 Chronic embolism and thrombosis of right subclavian vein I82.B22 Chronic embolism and thrombosis of left subclavian vein I82.B23 Chronic embolism and thrombosis of subclavian vein, bilateral I82.B29 Chronic embolism and thrombosis of unspecified subclavian vein I82.C11 Acute embolism and thrombosis of right internal jugular vein I82.C12 Acute embolism and thrombosis of left internal jugular vein I82.C13 Acute embolism and thrombosis of internal jugular vein, bilateral I82.C19 Acute embolism and thrombosis of unspecified internal jugular vein I82.C21 Chronic embolism and thrombosis of right internal jugular vein I82.C22 Chronic embolism and thrombosis of left internal jugular vein I82.C23 Chronic embolism and thrombosis of internal jugular vein, bilateral I82.C29 Chronic embolism and thrombosis of unspecified internal jugular vein I82.811 Embolism and thrombosis of superficial veins of right lower extremities I82.812 Embolism and thrombosis of superficial veins of left lower extremities I82.813 Embolism and thrombosis of superficial veins of lower extremities, bilateral I82.819 Embolism and thrombosis of superficial veins of unspecified lower extremities I82.890 Acute embolism and thrombosis of other specified veins I82.891 Chronic embolism and thrombosis of other specified veins I82.90 Acute embolism and thrombosis of unspecified vein I82.91 Chronic embolism and thrombosis of unspecified vein I85.00 Esophageal varices without bleeding
Other specified diabetes mellitus with moderate nonproliferative diabeticretinopathy with macular edema, right eye E13.3312
Gamma Glutamyl Transferase (GGT) is an intracellular enzyme that appears in blood following leakage from cells. Renal tubules, liver, and pancreas contain high amounts, although the measurement of GGT in serum is almost always used for assessment of hepatobiliary function. Unlike other enzymes which are found in heart, skeletal muscle, and intestinal mucosa as well as liver, the appearance of an elevated level of GGT in serum is almost always the result of liver disease or injury. It is specifically useful to differentiate elevated alkaline phosphatase levels when the source of the alkaline phosphatase increase (bone, liver, or placenta) is unclear. The combination of high alkaline phosphatase and a normal GGT does not, however, rule out liver disease completely.
When used to assess liver dysfunction secondary to existing non-hepatobiliary disease with no change in signs, symptoms, or treatment, it is generally not necessary to repeat a GGT determination after a normal result has been obtained unless new indications are present .
Because of the extreme sensitivity of GGT as a marker for cytochrome oxidase induction or cell membrane permeability, it is generally not useful in monitoring patients with known liver disease.
If the GGT is the only "liver" enzyme abnormally high, it is generally not necessary to pursue further evaluation for liver disease for this specific indication.
As well as being a very specific marker of hepatobiliary function, GGT is also a very sensitive marker for hepatocellular damage. Abnormal concentrations typically appear before elevations of other liver enzymes or bilirubin are evident. Obstruction of the biliary tract, viral infection (e.g., hepatitis, mononucleosis), metastatic cancer, exposure to hepatotoxins (e.g., organic solvents, drugs, alcohol), and use of drugs that induce microsomal enzymes in the liver (e.g., cimetidine, barbiturates, phenytoin, and carbamazepine) all can cause a moderate to marked increase in GGT serum concentration. In addition, some drugs can cause or exacerbate liver dysfunction (e.g., atorvastatin, troglitazone, and others as noted in FDA Contraindications and Warnings.)