Z11.8 ICD-10-CM Code: Encounter for screening for other infectious and parasitic diseases
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Inpatient Payment Groups (MS-DRG)
MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.
- MS-DRG 951 — OTHER FACTORS INFLUENCING HEALTH STATUS (MDC 23)
A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Z11.8 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Encounter for screening for chlamydia
- Encounter for screening for rickettsial
- Encounter for screening for spirochetal
- Encounter for screening for mycoses
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- encounter for diagnostic examination-code to sign or symptom
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- examinations related to pregnancy and reproduction (Z30-Z36, Z39.-)
Nearest Codes in This Family
Official ICD-10-CM classifications closest to Z11.8 in its code family, with their registry titles.
- Z11.2 — Encounter for screening for other bacterial diseases
- Z11.3 — Encounter for screening for infections with a predominantly sexual mode of transmission
- Z11.4 — Encounter for screening for human immunodeficiency virus [HIV]
- Z11.5 — Encounter for screening for other viral diseases
- Z11.51 — Encounter for screening for human papillomavirus (HPV)
- Z11.52 — Encounter for screening for COVID-19
- Z11.59 — Encounter for screening for other viral diseases
- Z11.6 — Encounter for screening for other protozoal diseases and helminthiases
- Z11.7 — Encounter for testing for latent tuberculosis infection
- Z11.9 — Encounter for screening for infectious and parasitic diseases, unspecified
Indexed Clinical Terms (11)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Screening (for), chlamydial diseases
- Screening (for), disease or disorder, chlamydial
- Screening (for), disease or disorder, rickettsial
- Screening (for), disease or disorder, spirochetal
- Screening (for), infection, mycotic
- Screening (for), infection, parasitic
- Screening (for), leptospirosis
- Screening (for), mycoses
- Screening (for), parasitic infestation, specified NEC
- Screening (for), trachoma
- Screening (for), yaws