2026 ICD-10-CM Diagnosis Code Z86.19Personal history of other infectious and parasitic diseases
Z86.19 is a billable ICD-10-CM diagnosis code for personal history of other infectious and parasitic diseases. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Personal history of other disease.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z86.19.
Present on Admission (POA)Billing
Z86.19 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- H/O: chickenpox
- H/O: infectious disease
- H/O: pelvic infection
- H/O: rubella
- H/O: scarlatina
- H/O: viral illness
- History of abdominal abscess
- History of aspergilloma
- History of bacterial infection
- History of bacterial sepsis
- History of bilateral prosthetic hip joint removal due to infection
- History of chlamydial infection
- History of cytomegalovirus infection
- History of Dengue virus infection
- History of diphtheria
- History of glandular fever
- History of Haemophilus influenzae type b infection
- History of Helicobacter pylori infection
- History of hepatitis A
- History of hepatitis B
- History of hepatitis B conferring immunity
- History of hepatitis C
- History of herpes simplex keratitis
- History of herpes zoster
- History of histoplasmosis
- History of human papilloma virus infection
- History of infection caused by Candida auris
- History of infection caused by carbapenem resistant Enterobacteriaceae
- History of infection caused by Clostridioides difficile
- History of infection caused by extended spectrum beta-lactamase producing bacteria
- History of infection caused by multiple drug resistant bacterium
- History of infection due to vancomycin resistant enterococcus
- History of infection following procedure
- History of intestinal infection caused by Clostridioides difficile
- History of left prosthetic hip joint removal due to infection
- History of left prosthetic knee joint removal due to infection
- History of left prosthetic shoulder joint removal due to infection
- History of Lyme disease
- History of measles
- History of monkeypox
- History of mumps
- History of ocular zoster
- History of parasitic disease
- History of pneumococcal infection
- History of positive Toxoplasma gondii antibody
- History of prosthetic hip joint removal due to infection
- History of right prosthetic hip joint removal due to infection
- History of right prosthetic knee joint removal due to infection
- History of right prosthetic shoulder joint removal due to infection
- History of sepsis
- History of sexually transmitted disease
- History of syphilis
- History of toxoplasmosis
- History of typhoid
- History of viral hepatitis
- History of Zika virus infection
- Postinfectious state
- Recent Dengue virus infection
- Recent Zika virus infection
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- History
- personal (of) - See Also: History, family (of);
- disease or disorder (of) - Z87.898
- infectious - Z86.19
- specified NEC - Z86.19
- parasitic - Z86.19
- infection NEC - Z86.19
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Hepatitis
- history of
- B
- Hepatitis
- history of
- C
- History
- personal (of)
- disease or disorder (of)
- infectious
- History
- personal (of)
- disease or disorder (of)
- infectious
- specified NEC
- History
- personal (of)
- disease or disorder (of)
- parasitic
- History
- personal (of)
- hepatitis
- B
- History
- personal (of)
- hepatitis
- C
- History
- personal (of)
- infection NEC
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Infectious Diseases
Germs, or microbes, are found everywhere - in the air, soil, and water. There are also germs on your skin and in your body. Many of them are harmless, and some can even be helpful. But some of them can make you sick. Infectious diseases are diseases that are caused by germs.
The full article covers:
- What are infectious diseases?
- What are the different types of germs that cause infectious diseases?
- How can you get infectious diseases?
- What are the symptoms of infectious diseases?
- What are the treatments for infectious diseases?
- Can infectious diseases be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Z86.19 to ICD-9-CMHistory
Code HistoryHistory
Questions About Z86.19Overview
Is Z86.19 (Personal history of infectious and parasitic diseases) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report personal history of other infectious and parasitic diseases on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Can Z86.19 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because personal history of other infectious and parasitic diseases describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z86.19 exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for personal history of other infectious and parasitic diseases on inpatient claims.
What is the ICD-9 equivalent of Z86.19?
Under the General Equivalence Mappings, personal history of other infectious and parasitic diseases converts to ICD-9-CM V12.00 (prsnl hst unsp nfct prst) and V12.09 (prsnl hst oth nfct parst). The mapping is approximate, so confirm the match fits the documentation.
