S23.1
Subluxation and dislocation of thoracic vertebra
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 16 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 17
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
S23.1code
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 6 same parent — S23
S23.0 Traumatic rupture of thoracic intervertebral disc category S23.2 Dislocation of other and unspecified parts of thorax category S23.3 Sprain of ligaments of thoracic spine category S23.4 Sprain of ribs and sternum category S23.8 Sprain of other specified parts of thorax category S23.9 Sprain of unspecified parts of thorax category
Subordinate codes 8
S23.10 Subluxation and dislocation of unspecified thoracic vertebra S23.11 Subluxation and dislocation of T1/T2 thoracic vertebra S23.12 Subluxation and dislocation of T2/T3-T3/T4 thoracic vertebra S23.13 Subluxation and dislocation of T4/T5-T5/T6 thoracic vertebra S23.14 Subluxation and dislocation of T6/T7-T7/T8 thoracic vertebra S23.15 Subluxation and dislocation of T8/T9-T9/T10 thor vertebra S23.16 Subluxation and dislocation of T10/T11-T11/T12 thor vertebra S23.17 Subluxation and dislocation of T12/L1 thoracic vertebra
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.