ICD Code Z79.890

ICD code Z79.890 is used to indicate that a patient is currently taking a long-term (current) medication for anticoagulation therapy, such as warfarin or other blood thinners.

1. Patient is currently taking a long-term medication or drug.

2. The medication is being used for ongoing management of a chronic condition or disease.

3. The therapy is expected to continue for an extended period, not just a short-term or acute course.

4. The medication is not being used solely for prophylactic or preventive purposes.

5. Documentation supports the necessity of continued drug therapy as part of the patient’s treatment plan.

Relevant CPT codes that may be used to treat ICD code Z79.890 include:

- 99201–99215 (Evaluation and Management services)

- 99406–99407 (Smoking and tobacco use cessation counseling)

- 99408–99409 (Alcohol and/or substance abuse structured screening and brief intervention)

- 96372 (Therapeutic, prophylactic, or diagnostic injection)

- 96365–96368 (Intravenous infusion, for therapy, prophylaxis, or diagnosis)

- 90832–90838 (Psychotherapy services)

- 80305–80307 (Drug test(s), presumptive)

- 80320–80377 (Drug test(s), definitive)

- G0438–G0439 (Annual wellness visits, Medicare)

CPT code selection should be based on the specific services rendered in relation to ICD code Z79.890.

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