The ICD-10 section that covers long-term drug therapy is Z79, with many subsections and specific diagnosis codes.
ICD-10 code T80 for Complications following infusion, transfusion and therapeutic injection is a medical classification as listed by WHO under the range - Injury, poisoning and certain other consequences of external causes .
811.
Long term (current) use of systemic steroids The 2022 edition of ICD-10-CM Z79. 52 became effective on October 1, 2021. This is the American ICD-10-CM version of Z79.
CPT® code 96372: Injection of drug or substance under skin or into muscle.
ICD-10 code Z51. 81 for Encounter for therapeutic drug level monitoring is a medical classification as listed by WHO under the range - Factors influencing health status and contact with health services .
Other long term (current) drug therapy Z79. 899 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM Z79. 899 became effective on October 1, 2021.
Even though ICD-10-CM does not provide a specific code for immunosuppressants, Z79. 899 is used to identify the immunosuppressant therapy.
ICD-10-CM Code for Long term (current) use of oral hypoglycemic drugs Z79. 84.
ICD-10 code Z79. 5 for Long term (current) use of steroids is a medical classification as listed by WHO under the range - Factors influencing health status and contact with health services .
ICD-10 code Z79. 52 for Long term (current) use of systemic steroids is a medical classification as listed by WHO under the range - Factors influencing health status and contact with health services .
CPT codes 64479 and 64483 are used to report a single level injection. CPT codes 64480 and 64484 represent each additional level, respectively and should be reported separately in addition to the primary procedure when applicable.