2027 ICD-10-CM Diagnosis Code Z11.1Encounter for screening for respiratory tuberculosis
Z11.1 is a billable ICD-10-CM diagnosis code for encounter for screening for respiratory tuberculosis. 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 finding of Mantoux test. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Exposure, encounters, screening or contact with infectious disease.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z11.1.
Present on Admission (POA)Billing
Z11.1 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.
- Finding of Mantoux test
- Mantoux: negative
- Plain X-ray of chest abnormal
- Plain X-ray of chest for tuberculosis screening abnormal
- Plain X-ray of chest for tuberculosis screening normal
- Plain X-ray of chest normal
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to Z11.1: its own notes plus those printed at Z11, 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 for active tuberculosis disease
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- 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.
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 Z11.1, its category, or a range that includes it.
Excludes1 1
These codes carry an Excludes1 note naming Z11.1: they are not reported together with it, unless the two conditions are unrelated.
- Z13.83 Encounter for screening for respiratory disorder NECencounter for screening for respiratory tuberculosis (Z11.1)
Excludes2 2
These codes carry an Excludes2 note naming Z11.1: its condition is not part of those codes, and both may be reported when the patient has both.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Admission (for) See Also: Encounter (for);
sensitivity test See Also: Test, skin;
Mantoux Z11.1
pulmonary tuberculosis Z11.1
respiratory tuberculosis Z11.1
tuberculosis, respiratory Z11.1
active Z11.1
Mantoux Z11.1
tuberculin Z11.1
tuberculin Z11.1
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Tuberculosis Screening
A tuberculosis screening test checks to see if you have the bacteria (germs) that cause tuberculosis (TB) in your body. TB is a bacterial infection that mainly attacks the lungs. But it can also affect other parts of the body, including the brain, spine, and kidneys.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Z11.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Z11.1Overview
What is the ICD-10 code for encounter for screening for respiratory tuberculosis?
The ICD-10-CM code for encounter for screening for respiratory tuberculosis is Z11.1 (sometimes written as Z111). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is Z11.1 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report encounter for screening for respiratory tuberculosis on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does Z11.1 group to?
On inpatient claims, encounter for screening for respiratory tuberculosis 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 Z11.1 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because encounter for screening for respiratory tuberculosis describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z11.1 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 respiratory tuberculosis on inpatient claims. The code appears in the Persons encountering health services for examinations (Z00-Z13) range of the CMS exempt list.
