S23
Dislocation and sprain of joints and ligaments of thorax
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 15 never code together
S23code
S20-S29block
Excludes2
- burns and corrosions (T20-T32)T20-T32
- effects of foreign body in bronchus (T17.5)T17.5
- effects of foreign body in esophagus (T18.1)T18.1
- effects of foreign body in lung (T17.8)T17.8
- effects of foreign body in trachea (T17.4)T17.4
- frostbite (T33-T34)T33-T34
- injuries of axilla
- injuries of clavicle
- injuries of scapular region
- injuries of shoulder
- insect bite or sting, venomous (T63.4)T63.4
Excludes2 — not included here, but the patient may have both. Code both when documented.
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 14
S23code
Includes
- avulsion of joint or ligament of thorax
- laceration of cartilage, joint or ligament of thorax
- sprain of cartilage, joint or ligament of thorax
- traumatic hemarthrosis of joint or ligament of thorax
- traumatic rupture of joint or ligament of thorax
- traumatic subluxation of joint or ligament of thorax
- traumatic tear of joint or ligament of thorax
Code also
- any associated open wound
S20-S29block
Includes
- injuries of breast
- injuries of chest (wall)
- injuries of interscapular area
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- 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 unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 7
S23.0 Traumatic rupture of thoracic intervertebral disc S23.1 Subluxation and dislocation of thoracic vertebra S23.2 Dislocation of other and unspecified parts of thorax S23.3 Sprain of ligaments of thoracic spine S23.4 Sprain of ribs and sternum S23.8 Sprain of other specified parts of thorax S23.9 Sprain of unspecified parts of thorax
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.