A16 ICD-10-CA category: Respiratory tuberculosis, not confirmed bacteriologically or histologically
A16 isn’t a code on its own. Choose one of the 12 codes beneath it, the one the documentation supports.
Official description
A16Respiratory tuberculosis, not confirmed bacteriologically or histologically
ICD-10-CA · Canada
Codes in A16
A16 isn’t a code on its own. Open the group that matches what the note documents.
A16.0Tuberculosis of lung, bacteriologically and histologically negativeA16.1Tuberculosis of lung, bacteriological and histological examination not done (2 codes)A16.2Tuberculosis of lung, without mention of bacteriological or histological confirmation (2 codes)A16.3Tuberculosis of intrathoracic lymph nodes, without mention of bacteriological or histological confirmationA16.4Tuberculosis of larynx, trachea and bronchus, without mention of bacteriological or histological confirmationA16.5Tuberculous pleurisy, without mention of bacteriological or histological confirmationA16.7Primary respiratory tuberculosis without mention of bacteriological or histological confirmationA16.8Other respiratory tuberculosis, without mention of bacteriological or histological confirmationA16.9Respiratory tuberculosis unspecified, without mention of bacteriological or histological confirmation (2 codes)Notes for A16
As CIHI prints them, with any note A16 takes from the headings above it.
Includes
- Infections due to Mycobacterium tuberculosis and Mycobacterium bovisFrom A15-A19 Tuberculosis
- Diseases generally recognized as communicable or transmissibleFrom Chapter 1: Certain infectious and parasitic diseases (A00-B99)
Use additional code
Add a code for this detail when the note documents it.
- Use additional code (U82-U84) to identify resistance to antimicrobial drugsFrom Chapter 1: Certain infectious and parasitic diseases (A00-B99)
Excludes
Conditions classified elsewhere.
- Congenital tuberculosis (P37.0)pneumoconiosis associated with tuberculosis (J65)sequelae of tuberculosis (B90.-)silicotuberculosis (J65)From A15-A19 Tuberculosis
- Carrier or suspected carrier of infectious disease (Z22.-)certain localized infections - see body system-related chaptersinfectious and parasitic diseases:• complicating pregnancy, childbirth and the puerperium [except obstetrical tetanus] (O98.-)• specific to the perinatal period [except tetanus neonatorum, whooping cough, congenital syphilis, perinatal gonococcal infection and perinatal human immunodeficiency virus [HIV] disease] (P35-P39)influenza and other acute respiratory infections (J00-J22)From Chapter 1: Certain infectious and parasitic diseases (A00-B99)
Where A16 sits
- 1ChapterChapter 1: Certain infectious and parasitic diseases (A00-B99)
- 2Block A15-A19Tuberculosis
- 3Category A16Respiratory tuberculosis, not confirmed bacteriologically or histologically
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is A16 a valid ICD-10-CA code?
No. A16 (Respiratory tuberculosis, not confirmed bacteriologically or histologically) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 12 codes; record the one the documentation supports.
Where is A16 in ICD-10-CA?
A16 sits under A15-A19 Tuberculosis, within Chapter 1: Certain infectious and parasitic diseases (A00-B99).
What coding notes apply to A16?
ICD-10-CA lists Includes, Excludes, Use additional code notes for A16, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.