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A39 ICD-10-CA category: Meningococcal infection

A39 isn’t a code on its own. Choose one of the 8 codes beneath it, the one the documentation supports.

Official description

A39

Meningococcal infection

ICD-10-CA · Canada

Codes in A39

A39 isn’t a code on its own. Open the code that matches what the note documents.

A39.0Meningococcal meningitisA39.1Waterhouse-Friderichsen syndromeA39.2Acute meningococcaemiaA39.3Chronic meningococcaemiaA39.4Meningococcaemia, unspecifiedA39.5Meningococcal heart diseaseA39.8Other meningococcal infectionsA39.9Meningococcal infection, unspecified

Notes for A39

As CIHI prints them, with any note A39 takes from the headings above it.

Includes

  • 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.

  • 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 A39 sits

  1. 1ChapterChapter 1: Certain infectious and parasitic diseases (A00-B99)
  2. 2Block A30-A49Other bacterial diseases
  3. 3Category A39Meningococcal infection

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 A39 in the CIHI source

Frequently asked questions

Is A39 a valid ICD-10-CA code?

No. A39 (Meningococcal infection) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 8 codes; record the one the documentation supports.

Where is A39 in ICD-10-CA?

A39 sits under A30-A49 Other bacterial diseases, within Chapter 1: Certain infectious and parasitic diseases (A00-B99).

What coding notes apply to A39?

ICD-10-CA lists Includes, Use additional code, Excludes notes for A39, 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 A39

A30Leprosy [Hansen's disease]A31Infection due to other mycobacteriaA32ListeriosisA33Tetanus neonatorumA34Obstetrical tetanusA35Other tetanusA36DiphtheriaA37Whooping coughA38Scarlet feverA40Streptococcal sepsisA41Other sepsisA42ActinomycosisA43NocardiosisA44BartonellosisA46ErysipelasA48Other bacterial diseases, not elsewhere classifiedA49Bacterial infection of unspecified site