Is there a specific code for elevated glucose tolerance test?
At 28 weeks’ gestation, Rebecca reports symptoms suggesting hyperglycemia, so you order blood glucose testing, which reveals elevated glucose tolerance. Code 648.8X, abnormal glucose tolerance, has been revised to include conditions classifiable as 790.21 through 790.29, and a note was added to report V58.67 for associated long-term (current) insulin use. Codes 790.21 through 790.29 are used to report specific abnormal glucose findings and may be added as a secondary diagnosis to clarify the abnormal result in pregnancy. For instance, code 790.21 is reported if the patient has elevated fasting glucose, while 790.22 indicates she has an elevated glucose tolerance test, as in Rebecca’s case.
