Z22.7

Z22.7: Latent tuberculosis

Billable / specific codeICD-10-CMPOA exempt

Z22.7 is a billable, specific ICD-10-CM code for latent tuberculosis. It is valid for submission on a claim.

Check Z22.7 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Latent tuberculosis infection (LTBI)

Excludes2 inherited from the categories above Z22.7

Not part of this code, but both may be coded when both are present.

Written on Z22: Carrier of infectious disease

carrier of viral hepatitis (B18.-)

Other codes that can never be billed with Z22.7

Their own Excludes1 notes name this code, so the conflict is not listed above.

Z20Contact with and (suspected) exposure to communicable diseases
R82.7Abnormal findings on microbiological examination of urine
R83.5Abnormal microbiological findings in cerebrospinal fluid
R84.5Abnormal microbiological findings in specimens from respiratory organs and thorax
R85.5Abnormal microbiological findings in specimens from digestive organs and abdominal cavity
R86.5Abnormal microbiological findings in specimens from male genital organs
R87.5Abnormal microbiological findings in specimens from female genital organs
R89.5Abnormal microbiological findings in specimens from other organs, systems and tissues

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Z22.7 is named in 3 Medicare coverage policies: 3 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A58801Billing and Coding: Pharmacogenomics Testing
A58812Billing and Coding: Pharmacogenomics Testing
A59915Billing and Coding: Pharmacogenomic Testing

Alphabetic index entries that lead here

LTBI(latent tuberculosis infection)
Tuberculosis, tubercular, tuberculous›latent
Infection, infected, infective›tuberculous›latent(LTBI)
Tuberculosis, tubercular, tuberculous›abscess›latent

Code history

Unchanged in every release from FY2024 to FY2027.