Non-Billable / Non-Specific Code
ICD-10-CM Z11 is the diagnosis code for Encounter for screening for infectious and parasitic diseases. This code falls under the section "Persons encountering health services for examinations" within Chapter 21 — Factors influencing health status and contact with health services (Z00-Z99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as Z11. They are mutually exclusive:
Understanding where Z11 sits in the ICD-10-CM classification helps ensure proper coding:
No, Z11 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
Z11 is the ICD-10-CM diagnosis code for "Encounter for screening for infectious and parasitic diseases". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
Z11 is located in Section Z00-Z13 — "Persons encountering health services for examinations" within Chapter 21 of the ICD-10-CM Tabular List.
Z11 has 10 sub-code(s) that provide more specific detail: Z11.0, Z11.1, Z11.2, Z11.3, Z11.4 and more.
Use Z11 when the patients documented diagnosis matches "Encounter for screening for infectious and parasitic diseases" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Encounter for screening for infectious and parasitic diseases is Z11.
No, Z11 is non-billable. Use a more specific sub-code for primary diagnosis billing.
Z11 is in Chapter 21 of the ICD-10-CM Tabular List.
Type 1 Excludes for Z11 include: encounter for diagnostic examination-code to sign or symptom.
Yes, Z11 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.