S83.191 ICD-10-CA code: Unspecified dislocation of knee, open

S83.191 is the ICD-10-CA code for “Unspecified dislocation of knee, open” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

S83.191

Unspecified dislocation of knee, open

Short description: Unspecified dislocation of knee open

ICD-10-CA · Canada · Also written S83191

Notes for S83.191

As CIHI prints them, with any note S83.191 takes from the headings above it.

Includes

Excludes

Conditions classified elsewhere.

  • Derangement of:• knee, internal (M23.-)• patella (M22.0-M22.3)dislocation of knee:• old (M24.3)• pathological (M24.3)• recurrent (M24.4)From S83 Dislocation, sprain and strain of joints and ligaments of knee
  • Bilateral involvement of knee and lower leg (T00-T07)burns and corrosions (T20-T32)frostbite (T33-T35)injuries of:• ankle and foot, except fracture of ankle and malleolus (S90-S99)• leg, level unspecified (T12-T13)insect bite or sting, venomous (T63.4)From S80-S89 Injuries to the knee and lower leg
  • Birth trauma (P10-P15)obstetric trauma (O70-O71)From Chapter 19: Injury, poisoning and certain other consequences of external causes (S00-T98)

Note

  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to multiple or unspecified body regions as well as poisoning and certain other consequences of external causes.Where multiple sites of injury are specified in the titles, the word "with" indicates involvement of both sites, and the word "and" indicates involvement of either or both sites.The principle of multiple coding of injuries should be followed wherever possible.Combination categories for multiple injuries is provided for use when there are insufficient detail as to the nature of the individual conditions, or for primary tabulation purposes when it is more convenient to record single code; otherwise, the component injuries should be coded separately.Reference should also be made to the coding rules and guidelines.The blocks of the S-section as well as (T00-T14 and T90-T98) contain injuries at the three-character level classified by type as follows:Superficial injury including:abrasionblister (nonthermal)contusion, including bruise and haematomainjury from superficial foreign body (splinter) without major open woundinsect bite (nonvenomous)Open wound including:animal bitecutlacerationpuncture wound:• NOS• with (penetrating) foreign bodyFracture including:Fracture:closed: comminuted, depressed, elevated, fissured, greenstick, impacted, linear, simple, slipped epiphysis, spiral — with or without delayed healingdislocateddisplacedFracture:open: compound, infected, missile, puncture, with foreign body — with or without delayed healingExcludes:malunion of fracture (M84.0)nonunion of fracture [pseudoarthrosis] (M84.1)pathological fracture (M84.4):• with osteoporosis (M80.-)stress fracture (M84.3)Dislocation, sprain and strain including:avulsion, laceration, sprain, strain, traumatic: haemarthosis, rupture, subluxation, tear of cartilage, joint (capsule), ligamentInjury to nerves and spinal cord including:complete or incomplete lesion of spinal cordlesion incontinuity of nerves and spinal cordtraumatic:• division of nerve• haematomyelia• paralysis (transient)• paraplegia• quadriplegiaInjury to blood vessels includingavulsion, cut, laceration, traumatic: aneurysm or fistula (arteriovenous), arterial haematoma, rupture of blood vesselsInjury of muscle, fascia and tendon including:avulsion, cut, laceration, strain, traumatic rupture of muscle, fascia and tendonCrushing InjuryTraumatic amputationInjury to internal organs including:blast injuries, bruise, concussion injuries, crushing, laceration, traumatic: haematoma, puncture, rupture, tear of internal organsOther and unspecified injuriesFrom Chapter 19: Injury, poisoning and certain other consequences of external causes (S00-T98)

Where S83.191 sits

  1. 1ChapterChapter 19: Injury, poisoning and certain other consequences of external causes (S00-T98)
  2. 2Block S80-S89Injuries to the knee and lower leg
  3. 3Category S83Dislocation, sprain and strain of joints and ligaments of knee
  4. 4Subcategory S83.1Dislocation of knee
  5. 5Subcategory S83.19Unspecified dislocation of knee
  6. 6Valid code S83.191Unspecified dislocation of knee, open

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

What does ICD-10-CA code S83.191 mean?

S83.191 is the ICD-10-CA code for “Unspecified dislocation of knee, open” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is S83.191 in ICD-10-CA?

S83.191 sits under S83.19 Unspecified dislocation of knee, within S83.1 Dislocation of knee, within S83 Dislocation, sprain and strain of joints and ligaments of knee, within S80-S89 Injuries to the knee and lower leg, within Chapter 19: Injury, poisoning and certain other consequences of external causes (S00-T98).

What coding notes apply to S83.191?

ICD-10-CA lists Includes, Excludes, Note notes for S83.191, 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.