Z79.4
Billable codeLong term (current) use of insulin
The ICD-10 code for long term (current) use of insulin is Z79.4.
Clinical notes
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- Z79.0Long term (current) use of anticoagulants and antithrombotics/antiplateletsnon-billable header
- Z79.1Long term (current) use of non-steroidal anti-inflammatories (NSAID)
- Z79.2Long term (current) use of antibiotics
- Z79.3Long term (current) use of hormonal contraceptives
- Z79.5Long term (current) use of steroidsnon-billable header
- Z79.6Long term (current) use of immunomodulators and immunosuppressantsnon-billable header
- Z79.8Other long term (current) drug therapynon-billable header
- Z79.4Long term (current) use of insulin
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- V5867
Associated MS-DRGs
Z79.4 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.