2020 ICD-10-CM Diagnosis Code Z79.899

Other long term (current) drug therapy

    2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
  • Z79.899 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM Z79.899 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of Z79.899 - other international versions of ICD-10 Z79.899 may differ.
The following code(s) above Z79.899 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to Z79.899:
  • Z00-Z99
    2020 ICD-10-CM Range Z00-Z99

    Factors influencing health status and contact with health services

    Note
    • Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
    • (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
    • (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
    Factors influencing health status and contact with health services
  • Z77-Z99
    2020 ICD-10-CM Range Z77-Z99

    Persons with potential health hazards related to family and personal history and certain conditions influencing health status

    Code Also
    • any follow-up examination (Z08-Z09)
    Persons with potential health hazards related to family and personal history and certain conditions influencing health status
  • Z79
    ICD-10-CM Diagnosis Code Z79

    Long term (current) drug therapy

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Code Also
    • any therapeutic drug level monitoring (Z51.81)
    Includes
    • long term (current) drug use for prophylactic purposes
    Type 2 Excludes
    • drug abuse and dependence (F11-F19)
    • drug use complicating pregnancy, childbirth, and the puerperium (O99.32-)
    • long term (current) use of oral antidiabetic drugs (Z79.84)
    • long term (current) use of oral hypoglycemic drugs (Z79.84)
    Long term (current) drug therapy
Approximate Synonyms
  • Allergen immunotherapy started
  • Antihypertensive agent surveillance
  • Antihypertensive medication surveillance done
  • High risk medication monitoring
  • High risk medication monitoring indicated
  • Immunodeficiency due to long term therapeutic use of drug
  • Long term antidepressant medication therapy
  • Long term antipsychotic medication therapy
  • Long term antiviral therapy
  • Long term anxiolytic medication therapy
  • Long term apremilast therapy
  • Long term current use of abatacept
  • Long term current use of abatacept (orencia)
  • Long term current use of acetaminophen (tylenol)
  • Long term current use of acitretin (soriatane)
  • Long term current use of adalimumab (humira)
  • Long term current use of amiodarone
  • Long term current use of anakinra (kineret)
  • Long term current use of anticonvulsant
  • Long term current use of aralen (chloroquine)
  • Long term current use of azathioprine
  • Long term current use of belimumab (benlysta)
  • Long term current use of cannabis
  • Long term current use of clozapine (clozaril)
  • Long term current use of cyclophosphamide
  • Long term current use of cyclosporine
  • Long term current use of etanercept
  • Long term current use of etanercept (enbrel)
  • Long term current use of felbamate (felbatol)
  • Long term current use of filgrastim (neupogen)
  • Long term current use of golimumab (simponi)
  • Long term current use of humira
  • Long term current use of hydroxychloroquine (plaquenil)
  • Long term current use of infliximab (remicade)
  • Long term current use of isotretinoin (accutane)
  • Long term current use of leflunomide (arava)
  • Long term current use of lenalidomide (revlimid)
  • Long term current use of lithium
  • Long term current use of medication for add and or adhd
  • Long term current use of medication for attention deficit disorder (add) or attention deficit hyperactivity disorder (adhd)
  • Long term current use of methotrexate
  • Long term current use of mycophenolate
  • Long term current use of pharmaceutical gold
  • Long term current use of plaquenil
  • Long term current use of remicade
  • Long term current use of retinoid
  • Long term current use of rituximab (rituxan)
  • Long term current use of sirolimus (rapamune)
  • Long term current use of sulfasalazine (azulfidine)
  • Long term current use of tacrolimus
  • Long term current use of tocilizumab
  • Long term diuretic therapy
  • Long term drug therapy
  • Long term erythropoiesis stimulating agent therapy
  • Long term growth hormone therapy
  • Long term intravenous immune globulin therapy
  • Long term mercaptopurine therapy
  • Long term methotrexate user
  • Long term testosterone cypionate (oil based intramuscular injection) therapy
  • Long term tofacitinib therapy
  • Long term use certolizumab pegol
  • Long term ustekinumab therapy
  • Long-term current use of acitretin
  • Long-term current use of anakinra
  • Long-term current use of antidepressant medication
  • Long-term current use of antipsychotic medication
  • Long-term current use of antiviral
  • Long-term current use of anxiolytic medication
  • Long-term current use of apremilast
  • Long-term current use of aralen
  • Long-term current use of belimumab
  • Long-term current use of certolizumab pegol
  • Long-term current use of clozapine
  • Long-term current use of diuretic
  • Long-term current use of erythropoiesis stimulating agent
  • Long-term current use of felbamate
  • Long-term current use of filgrastim
  • Long-term current use of golimumab
  • Long-term current use of growth hormone
  • Long-term current use of high dose acetaminophen
  • Long-term current use of hydroxychloroquine
  • Long-term current use of intravenous immune globulin
  • Long-term current use of isotretinoin
  • Long-term current use of leflunomide
  • Long-term current use of lenalidomide
  • Long-term current use of medicinal gold
  • Long-term current use of mercaptopurine
  • Long-term current use of rituximab
  • Long-term current use of sirolimus
  • Long-term current use of sulfasalazine
  • Long-term current use of testosterone cypionate
  • Long-term current use of tofacitinib
  • Long-term current use of ustekinumab
  • Malaria prophylaxis given
  • Medication surveillance, antihypertensive
  • Monitoring of long term therapeutic drug use done
  • Opioid dependence (moderate use disorder) on agonist therapy, in early remission
  • Opioid dependence (moderate use disorder) on agonist therapy, in sustained remission
  • Opioid dependence (severe use disorder) on agonist therapy, in early remission
  • Opioid dependence (severe use disorder) on agonist therapy, in sustained remission
  • Opioid dependence, moderate use, on agonist therapy, in early remission
  • Opioid dependence, moderate use, on agonist therapy, in sustained remission
  • Opioid dependence, severe use on agonist therapy, in early remission
  • Opioid dependence, severe use on agonist therapy, in sustained remission
  • Prophylactic (preventative) anticoagulation therapy
  • Prophylactic (preventative) immunotherapy
  • Prophylactic (preventative) malaria therapy
  • Prophylactic (preventative) medication prescription
  • Prophylactic anticoagulation given
  • Prophylactic medication given
  • Therapeutic drug induced immunosuppression, long term use
Present On Admission
POA Help
"Present On Admission" is defined as present at the time the order for inpatient admission occurs — conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered POA.
  • Z79.899 is considered exempt from POA reporting.
ICD-10-CM Z79.899 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 949 Aftercare with cc/mcc
  • 950 Aftercare without cc/mcc

Convert Z79.899 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to Z79.899:

ICD-10-CM Codes Adjacent To Z79.899
Z79.81 Long term (current) use of agents affecting estrogen receptors and estrogen levels
Z79.810 Long term (current) use of selective estrogen receptor modulators (SERMs)
Z79.811 Long term (current) use of aromatase inhibitors
Z79.818 Long term (current) use of other agents affecting estrogen receptors and estrogen levels
Z79.82 Long term (current) use of aspirin
Z79.83 Long term (current) use of bisphosphonates
Z79.84 Long term (current) use of oral hypoglycemic drugs
Z79.89 Other long term (current) drug therapy
Z79.890 Hormone replacement therapy
Z79.891 Long term (current) use of opiate analgesic
Z79.899 Other long term (current) drug therapy
Z80 Family history of primary malignant neoplasm
Z80.0 Family history of malignant neoplasm of digestive organs
Z80.1 Family history of malignant neoplasm of trachea, bronchus and lung
Z80.2 Family history of malignant neoplasm of other respiratory and intrathoracic organs
Z80.3 Family history of malignant neoplasm of breast
Z80.4 Family history of malignant neoplasm of genital organs
Z80.41 Family history of malignant neoplasm of ovary
Z80.42 Family history of malignant neoplasm of prostate
Z80.43 Family history of malignant neoplasm of testis
Z80.49 Family history of malignant neoplasm of other genital organs

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.