Chapter I - Certain infectious and parasitic diseases (A00-B99)

Question 1

5

Which groups of infections are excluded from Chapter I?

Listed at the beginning of Chapter I (ICD 10 - Vol 1 Tabular List)

Answer 1

1. Carrier/suspected carrier of infectious disease (Z22.-) (Chapter XXI)
2. Certain localised infections (Body system chapters)
3. Infections complicating pregnancy, childbirth and the puerperium (Chapter XV)
4. Certain infections originating in the perinatal period (Chapter XVI)
5. Influenza and other respiratory diseases (Chapter X)

Question 2

3

Describe the different ways in which infections might be indicated in the clinical statement.

Answer 2

• The infectious agent or organism causing the infection.
• The site of infection
• The site of a localised infection and the organism causing it
  (DGCS.6)

Question 3

DGCS.6: Infections

If only the infectious agent/organism is documented and no site is specified….

Answer 3

the infection is coded to the specified organism only, using a code from Chapter I.

Question 4

DGCS.6: Infections

If only the site of the infection is documented and no infectious agent/organism is stated….

Answer 4

code the site of the infection.

Question 5

DGCS.6: Infections

If both the site of the infection and the agent/organism causing it are documented…

Answer 5

a code must be assigned which identifies both the site and organism as follows:
* if directed to D&A combo, assign the D&A codes
* if directed to a single code, assign this code
* if not directed to either of above, assign a body system chapter code to identify the site, followed by a code from B95-B98 to identify the infective organism.

Question 6

DGCS.6: Infections

When it is clearly documented that an infection is resistant to drugs, what must be assigned and in what order?

Answer 6

A code from U82, U83 or U84 must be assigned directly after the code for the infection.

(see DCS.XXII.2)

Question 7

DCS.I.4: Bacterial, viral and other infectious agents (B95-B98)

In which position must codes within B95-B98 be assigned?

Answer 7

Only ever used in a secondary position to a code classified outside of Chapter I.

Question 8

DGCS.8: Sequelae or late effects

What does the term sequela mean?

Answer 8

A condition or disease caused by a previous disease/injury which has been treated and is no longer present.

Question 9

DGCS.8: Sequelae or late effects

What position must sequela codes be used in?

Answer 9

Only ever secondary, directly after the code for the current condition or disease. Never used on their own.