S23.420
Sprain of sternoclavicular (joint) (ligament)
Not billable — category only FY2026 2025-10-01 → 2026-09-30
FY2024–2026 only
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.
Alongside this code 3 same parent — S23.42
Subordinate codes 3
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.