Z22.7 is the authoritative medical code for Latent tuberculosis. This classification is used in medical billing and clinical recording to specify the clinical criteria for latent tuberculosis (ICD-10-CM Z22.7), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Latent tuberculosis is a billable ICD-10-CM diagnosis code Z22.7. Includes: colonization status; suspected carrier. Inclusion terms: Latent tuberculosis infection LTBI. Excludes1 (not coded here): 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): carrier of viral hepatitis B18.-.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Z22.7 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- colonization status
- suspected carrier
Inclusion Terms
Alternative terms the tabular list files under this code.
- Latent tuberculosis infection LTBI
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- 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
Conditions not covered by this code, but which may be reported alongside it when both are present.
- carrier of viral hepatitis B18.-
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with Z22.7?
Per official ICD-10-CM Excludes1 instructions, Z22.7 must not be reported together with: 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).
Can Z22.7 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, Z22.7 and the following are not considered part of each other and may both be reported when both conditions are present: carrier of viral hepatitis (B18.-).
What conditions are included under Z22.7?
Latent tuberculosis includes: Latent tuberculosis infection (LTBI).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to Z22.7 in its code family, with their registry titles.
- Z22 — Carrier of infectious disease
- Z22.0 — Carrier of typhoid
- Z22.1 — Carrier of other intestinal infectious diseases
- Z22.2 — Carrier of diphtheria
- Z22.3 — Carrier of other specified bacterial diseases
- Z22.31 — Carrier of bacterial disease due to meningococci
- Z22.32 — Carrier of bacterial disease due to staphylococci
- Z22.321 — Carrier or suspected carrier of Methicillin susceptible Staphylococcus aureus
- Z22.322 — Carrier or suspected carrier of Methicillin resistant Staphylococcus aureus
- Z22.33 — Carrier of bacterial disease due to streptococci
View all 25 codes in the Z22 family
Indexed Clinical Terms (4)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Infection, infected, infective (opportunistic), tuberculous, latent (LTBI)
- LTBI (latent tuberculosis infection)
- Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative), abscess (respiratory), latent
- Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative), latent