Alphabetic Index FY2027

Z22.7

Latent tuberculosis

FY2027Chapter 21: Factors influencing health status and contact with health services/Z20–Z29 Persons with potential health hazards related to communicable diseases

BillableComplete code, valid to report

Z22.7 (also written Z227) is a billable ICD-10-CM diagnosis code for latent tuberculosis. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 20 codes in category Z22 (Carrier of infectious disease). The Alphabetic Index lists it under 4 entries. Its coding notes include 2 Excludes1 entries and 1 Excludes2 entry.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • nonspecific reaction to cell mediated immunity measurement of gamma interferon antigen response without active tuberculosis (R76.12)
  • nonspecific reaction to tuberculin skin test without active tuberculosis (R76.11)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Inherited from Z22 Carrier of infectious disease
  • carrier of viral hepatitis (B18.-)

Includes

Further defines or gives examples of the content of the category.

Inherited from Z22 Carrier of infectious disease
  • colonization status
  • suspected carrier

Inclusion terms

Conditions classified to this code.

This code
  • Latent tuberculosis infection (LTBI)

Notes

Also from chapter/block level (3 notes)
Inherited from Chapter 21 Factors influencing health status and contact with health services
  • 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.

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 4 entries