991 BC MSP code: Effects of reduced temperature
991 is the BC MSP diagnostic code for “Effects of reduced temperature” in BC Medical Services Plan’s September 2026 release, in effect from Sep 11, 2026.
Official description
991Effects of reduced temperature
BC MSP diagnostic codes (ICD-9) · British Columbia
More specific than 991
991 is a valid code on its own. When the note says more, one of these may fit better.
991.0Effects of reduced temperature – Frostbite of face991.1Effects of reduced temperature – Frostbite of hand991.2Effects of reduced temperature – Frostbite of foot991.3Effects of reduced temperature – Frostbite of other and unspecified sites991.4Effects of reduced temperature – Immersion foot991.5Effects of reduced temperature – Chilblains991.6Effects of reduced temperature – Hypothermia991.8Effects of reduced temperature – Other991.9Effects of reduced temperature – UnspecifiedNotes for 991
BC Medical Services Plan’s list gives no includes, excludes or other notes for 991 or the headings above it.
Where 991 sits
- 1SectionInjury and poisoning
- 2SubsectionOther and unspecified effects of external causes (990 - 995.8)
- 3Valid code 991Effects of reduced temperature
Source and release
- Data release
- BC MSP · September 2026
- Effective date
- Sep 11, 2026
- Publisher
- BC Medical Services Plan
This page is built from the BC MSP catalog that Vero Codes reads when it suggests codes: BC Ministry of Health, Medical Services Plan’s September 2026 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
What does BC MSP diagnostic code 991 mean?
991 is the BC MSP diagnostic code for “Effects of reduced temperature” in BC Medical Services Plan’s BC MSP September 2026 release.
Where is 991 in the BC MSP list?
991 is listed under Injury and poisoning, Other and unspecified effects of external causes (990 - 995.8).
What coding notes apply to 991?
BC Medical Services Plan’s list gives no includes, excludes or other notes for 991 or the headings above it.
Which BC MSP release does this page use?
It uses BC Medical Services Plan’s September 2026 release, in effect from Sep 11, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.