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ICD-10-CM 2027 diagnosis code

S83.102Unspecified subluxation of left knee

Not billable — use a more specific codeRequires 7th character

S83.102 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About S83.102

S83.102 is the ICD-10-CM diagnosis code for unspecified subluxation of left knee. It belongs to category S83 (dislocation and sprain of joints and ligaments of knee), block S80-S89 (injuries to the knee and lower leg) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within S83.10 (unspecified subluxation and dislocation of knee), S83.102 is specifically for unspecified subluxation of left knee. Related codes cover subluxation of right knee (S83.101), subluxation of unspecified knee (S83.103), dislocation of right knee (S83.104), dislocation of left knee (S83.105) and dislocation of unspecified knee (S83.106).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

7th character

The appropriate 7th character is to be added to each code from category S83

Notes that apply from higher levels

Instructions written at a parent level also apply to S83.102.

› From S83.1 Subluxation and dislocation of knee
Excludes2
› From S83 Dislocation and sprain of joints and ligaments of knee
Includes
  • avulsion of joint or ligament of knee
  • laceration of cartilage, joint or ligament of knee
  • sprain of cartilage, joint or ligament of knee
  • traumatic hemarthrosis of joint or ligament of knee
  • traumatic rupture of joint or ligament of knee
  • traumatic subluxation of joint or ligament of knee
  • traumatic tear of joint or ligament of knee
Excludes2
  • derangement of patella (M22.0-M22.3)
  • injury of patellar ligament (tendon) (S76.1-)
  • internal derangement of knee (M23.-)
  • old dislocation of knee (M24.36)
  • pathological dislocation of knee (M24.36)
  • recurrent dislocation of knee (M22.0)
  • strain of muscle, fascia and tendon of lower leg (S86.-)
Code also
  • any associated open wound

Broader instructions also apply from S80-S89 Injuries to the knee and lower leg and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about S83.102

Is S83.102 billable?

No. S83.102 is a header code. Report one of its more specific subcodes instead.