2027 ICD-10-CM Diagnosis Code Z12.4Encounter for screening for malignant neoplasm of cervix
Z12.4 is a billable ICD-10-CM diagnosis code for encounter for screening for malignant neoplasm of cervix. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 951. 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 cancer cervix screening and fee claim. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neoplasm-related encounters.
This medical diagnosis code is frequently used in Family Practice medical specialties to designate conditions such general medical examination.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z12.4.
Present on Admission (POA)Billing
Z12.4 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Persons encountering health services for examinations (Z00-Z13).
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Cancer cervix screening and fee claim
- Sampling of cervix for Papanicolaou smear done
- Screening for malignant neoplasm done
- Screening for malignant neoplasm of cervix done
- Screening for neoplasm done
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to Z12.4: its own notes plus those printed at Z12, block Z00-Z13, and Chapter 21. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Encounter for screening pap smear for malignant neoplasm of cervix
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- when screening is part of general gynecological examination (Z01.4-)
- encounter for diagnostic examination-code to sign or symptom
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- encounter for screening for human papillomavirus (Z11.51)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
Notes
General instructions on how these codes are used.
- 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.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name Z12.4, its category, or a range that includes it.
Excludes1 1
These codes carry an Excludes1 note naming Z12.4: they are not reported together with it, unless the two conditions are unrelated.
- Z01.41 Encounter for routine gynecological examinationscreening cervical pap smear not a part of a routine gynecological examination (Z12.4)
Excludes2 3
These codes carry an Excludes2 note naming Z12.4: its condition is not part of those codes, and both may be reported when the patient has both.
- Z13.8 Encounter for screening for other specified diseases and disordersscreening for malignant neoplasms (Z12.-) names Z12.-, which includes this code
- Z00 Encounter for general examination without complaint, suspected or reported diagnosis
- Z01 Encounter for other special examination without complaint, suspected or reported diagnosis
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Admission (for) See Also: Encounter (for);
Papanicolaou smear, cervix Z12.4
for suspected neoplasm Z12.4
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Cervical Cancer Screening
Cervical cancer is cancer that starts in the cells of the cervix. The cervix is part of the female reproductive system. It is the lower, narrow end of the uterus (womb), which opens into the vagina (birth canal). Cervical cancer screening is an important part of routine health care for people who have a cervix.
The full article covers:
- What is cervical cancer screening?
- What tests screen for cervical cancer?
- What are the possible benefits and harms of cervical cancer screening?
- Should I be screened for cervical cancer?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Z12.4 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Z12.4Overview
What is the ICD-10 code for encounter for screening for malignant neoplasm of cervix?
The ICD-10-CM code for encounter for screening for malignant neoplasm of cervix is Z12.4 (sometimes written as Z124). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is Z12.4 (Encounter for screening for malignant neoplasms) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report encounter for screening for malignant neoplasm of cervix on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does Z12.4 group to?
On inpatient claims, encounter for screening for malignant neoplasm of cervix maps to MS-DRG 951 (other Factors Influencing Health Status), which carries a relative weight of 0.5574. Higher weights mean higher Medicare reimbursement.
Can Z12.4 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because encounter for screening for malignant neoplasm of cervix describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z12.4 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 malignant neoplasm of cervix on inpatient claims. The code appears in the Persons encountering health services for examinations (Z00-Z13) range of the CMS exempt list.
