2026 ICD-10-CM Diagnosis Code Z11.51Encounter for screening for human papillomavirus (HPV)

ICD-10-CM Codes›Z00–Z99›Z00-Z13›Z11

ICD-10-CM Z11.51
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z11.51 is a billable ICD-10-CM diagnosis code for encounter for screening for human papillomavirus (HPV). 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. Coders also document this condition as high risk human papillomavirus deoxyribonucleic acid detected. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Exposure, encounters, screening or contact with infectious disease.

Code Identity

ICD-10-CM Code
Z11.51
Billable Status
Yes — Valid for Submission
Code Describes
Encounter for screening for human papillomavirus (HPV)
Short Description
Encounter for screening for human papillomavirus (HPV)
Same as the full description in the CMS dataset.
Parent Code
Z11.5
Encounter for screening for other viral diseases

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ00-Z13Persons encountering health services for examinations
CategoryZ11Encounter for screening for infectious and parasitic diseases
This CodeZ11.51Encounter for screening for human papillomavirus (HPV)

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z11.51.

Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Present on Admission (POA)Billing

Z11.51 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.

  • High risk human papillomavirus deoxyribonucleic acid detected
  • High risk human papillomavirus deoxyribonucleic acid not detected
  • High risk human papillomavirus detected
  • High risk human papillomavirus not detected
  • Human papillomavirus deoxyribonucleic acid detected
  • Human papillomavirus deoxyribonucleic acid not detected

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Human
      • papillomavirus (HPV)
        • screening for
    • Screening(for)
      • human papillomavirus

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC016
Exposure, encounters, screening or contact with infectious disease
Default principal diagnosis: inpatient No · outpatient Yes

Patient EducationClinical

Human Papillomavirus (HPV) Test

Human papillomavirus (HPV) is a group of more than 100 related viruses that can generally be grouped into two types. These are called low-risk HPV and high-risk HPV. Low-risk HPV can cause warts on or around your genitals, anus, mouth, or throat. High-risk HPV can cause:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert Z11.51 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V73.81 Special screen exam HPV
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z11.51Overview

Is Z11.51 (Encounter for screening for other viral diseases) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report encounter for screening for human papillomavirus (HPV) on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Can Z11.51 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because encounter for screening for human papillomavirus (HPV) describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Is Z11.51 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 encounter for screening for human papillomavirus (HPV) on inpatient claims.

What is the ICD-9 equivalent of Z11.51?

Under the General Equivalence Mappings, encounter for screening for human papillomavirus (HPV) converts to ICD-9-CM V73.81 (special screen exam HPV). The mapping is a direct match.