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A16.5 ICD-10-CA code: Tuberculous pleurisy, without mention of bacteriological or histological confirmation

A16.5 is the ICD-10-CA code for “Tuberculous pleurisy, without mention of bacteriological or histological confirmation” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

A16.5

Tuberculous pleurisy, without mention of bacteriological or histological confirmation

Short description: TB pleurisy w/o bact or hist conf

ICD-10-CA · Canada · Also written A165

Index terms

Entries in CIHI’s alphabetical index that lead to A16.5. Searching the index by the condition the note names is how coders reach this code.

  • Pyothorax, tuberculous NEC
  • Hydropneumothorax, tuberculous NEC
  • Pyopneumothorax (infective), tuberculous NEC
  • Hemothorax (bacterial) (nontuberculous), tuberculous NEC
  • Adhesions, adhesive (postinfective), pleura, pleuritic, tuberculous NEC
  • Effusion, pleura, pleurisy, pleuritic, pleuropericardial, tuberculous NEC
  • Empyema (chest) (double) (pleura) (supradiaphragmatic) (thorax), tuberculous
  • Fistula, pleura, pleural, pleurocutaneous or pleuroperitoneal, tuberculous NEC
  • Tuberculosis, tubercular, tuberculous (caseous) (degeneration) (gangrene) (necrosis), empyema
  • Tuberculosis, tubercular, tuberculous (caseous) (degeneration) (gangrene) (necrosis), pyothorax
  • Tuberculosis, tubercular, tuberculous (caseous) (degeneration) (gangrene) (necrosis), hemothorax
  • Tuberculosis, tubercular, tuberculous (caseous) (degeneration) (gangrene) (necrosis), hydrothorax
  • Tuberculosis, tubercular, tuberculous (caseous) (degeneration) (gangrene) (necrosis), bronchopleural
  • Tuberculosis, tubercular, tuberculous (caseous) (degeneration) (gangrene) (necrosis), pyopneumothorax
  • Tuberculosis, tubercular, tuberculous (caseous) (degeneration) (gangrene) (necrosis), hydropneumothorax
  • Pleurisy (acute) (adhesive) (chronic) (double) (dry) (fibrinous) (subacute), tuberculous (with effusion) (non primary)
  • Pleurisy (acute) (adhesive) (chronic) (double) (dry) (fibrinous) (subacute), with, effusion, tuberculous NEC (non primary)
  • Tuberculosis, tubercular, tuberculous (caseous) (degeneration) (gangrene) (necrosis), pleura, pleural, pleurisy, pleuritis (fibrinous) (obliterative) (purulent) (simple plastic) (with effusion)

Notes for A16.5

As CIHI prints them, with any note A16.5 takes from the headings above it.

Includes

  • Tuberculous: empyema, pleurisy, Tuberculosis of pleura — NOS (without mention of bacteriological or histological confirmation)
  • 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.

  • In primary respiratory tuberculosis (A16.7)
  • 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 A16.5 sits

  1. 1ChapterChapter 1: Certain infectious and parasitic diseases (A00-B99)
  2. 2Block A15-A19Tuberculosis
  3. 3Category A16Respiratory tuberculosis, not confirmed bacteriologically or histologically
  4. 4Valid code A16.5Tuberculous pleurisy, without mention of bacteriological or histological confirmation

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.

See A16.5 in the CIHI source

Frequently asked questions

What does ICD-10-CA code A16.5 mean?

A16.5 is the ICD-10-CA code for “Tuberculous pleurisy, without mention of bacteriological or histological confirmation” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is A16.5 in ICD-10-CA?

A16.5 sits under A16 Respiratory tuberculosis, not confirmed bacteriologically or histologically, within A15-A19 Tuberculosis, within Chapter 1: Certain infectious and parasitic diseases (A00-B99).

What coding notes apply to A16.5?

ICD-10-CA lists Includes, Excludes, Use additional code notes for A16.5, 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.

Codes beside A16.5

A16.0Tuberculosis of lung, bacteriologically and histologically negativeA16.1Tuberculosis of lung, bacteriological and histological examination not doneA16.2Tuberculosis of lung, without mention of bacteriological or histological confirmationA16.3Tuberculosis of intrathoracic lymph nodes, without mention of bacteriological or histological confirmationA16.4Tuberculosis of larynx, trachea and bronchus, without mention of bacteriological or histological confirmationA16.7Primary 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