Z79.01 Long term (current) use of anticoagulants

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applies from Z79 Long term (current) drug therapy

Includes

• long term (current) drug use for prophylactic purposes

Excludes2 (not included here)

• drug abuse and dependence (F11-F19)
• drug use complicating pregnancy, childbirth, and the puerperium (O99.32-)

Code also

• any therapeutic drug level monitoring (Z51.81)

Applies from Z79.0 Long term (current) use of anticoagulants and antithrombotics/antiplatelets

Excludes2 (not included here)

• long term (current) use of aspirin (Z79.82)

MS-DRG index

Defines the logic of DRG(s) 949-950 in MDC 23.

Approximate ICD-9-CM (GEMs)

• V58.61 Long-term (current) use of anticoagulants

Code annotations containing back-references to Z79.01

Back-references to Z79.01

• Use Additional: I27.82 Chronic pulmonary embolism ("code, if applicable, for associated long-term (current) use of anticoagulants (Z79.01)")
• Use Additional: I82.5 Chronic embolism and thrombosis of deep veins of lower extremity ("code, if applicable, for associated long-term (current) use of anticoagulants (Z79.01)")
• Use Additional: I82.7 Chronic embolism and thrombosis of veins of upper extremity ("code, if applicable, for associated long-term (current) use of anticoagulants (Z79.01)")
• Use Additional: I82.8 Embolism and thrombosis of other specified veins ("code, if applicable, for associated long-term (current) use of anticoagulants (Z79.01)")
• Use Additional: O22.3 Deep phlebothrombosis in pregnancy ("code, if applicable, for associated long-term (current) use of anticoagulants (Z79.01)")
• Use Additional: O87.1 Deep phlebothrombosis in the puerperium ("code, if applicable, for associated long-term (current) use of anticoagulants (Z79.01)")

Back-references to Z79

• Code Also: Z51.81 Encounter for therapeutic drug level monitoring ("any long-term (current) drug therapy (Z79.-)")
• Type 2 Excludes: Z92.2 Personal history of drug therapy ("long term (current) drug therapy (Z79.-)")

Diagnosis Index entries for Z79.01

• Long-term (current) (prophylactic) drug therapy (use of) › anticoagulants
• Therapy › drug, long-term (current) (prophylactic) › anticoagulants

Nearby codes

• Z79 Long term (current) drug therapy
• Z79.0 Long term (current) use of anticoagulants and antithrombotics/antiplatelets
• Z79.01 Long term (current) use of anticoagulants (this code)
• Z79.02 Long term (current) use of antithrombotics/antiplatelets
• Z79.1 Long term (current) use of non-steroidal anti-inflammatories (NSAID)
• Z79.2 Long term (current) use of antibiotics
• Z79.3 Long term (current) use of hormonal contraceptives
• Z79.4 Long term (current) use of insulin