S23.12 is the authoritative medical code for Subluxation and dislocation of T2/T3-T3/T4 thoracic vertebra. This classification is used in medical billing and clinical recording to specify the clinical criteria for subluxation and dislocation of t2/t3-t3/t4 thoracic vertebra (ICD-10-CM S23.12), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Subluxation and dislocation of T2/T3-T3/T4 thoracic vertebra is a non-billable ICD-10-CM category code S23.12. A more specific billable subcode must be selected for claims submission. 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; injuries of breast; injuries of chest wall; injuries of interscapular area. Excludes2 (not included here): fracture of thoracic vertebrae S22.0-; dislocation, sprain of sternoclavicular joint (S43.2, S43.6); strain of muscle or tendon of thorax S29.01-; burns and corrosions T20-T32; effects of foreign body in bronchus T17.5; effects of foreign body in esophagus T18.1; effects of foreign body in lung T17.8; effects of foreign body in trachea T17.4; frostbite T33-T34; injuries of axilla; injuries of clavicle; injuries of scapular region; injuries of shoulder; insect bite or sting, venomous T63.4. Code also: any associated:; open wound of thorax S21.-; spinal cord injury (S24.0-, S24.1-); any associated open wound. 7th character: The appropriate 7th character is to be added to each code from category S23.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S23.12 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- 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
- injuries of breast
- injuries of chest wall
- injuries of interscapular area
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- fracture of thoracic vertebrae S22.0-
- dislocation, sprain of sternoclavicular joint (S43.2, S43.6)
- strain of muscle or tendon of thorax S29.01-
- burns and corrosions T20-T32
- effects of foreign body in bronchus T17.5
- effects of foreign body in esophagus T18.1
- effects of foreign body in lung T17.8
- effects of foreign body in trachea T17.4
- frostbite T33-T34
- injuries of axilla
- injuries of clavicle
- injuries of scapular region
- injuries of shoulder
- insect bite or sting, venomous T63.4
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated:
- open wound of thorax S21.-
- spinal cord injury (S24.0-, S24.1-)
- any associated open wound
Frequently Asked Questions (FAQ) & Clinical Guidance
Can S23.12 be billed directly?
No. S23.12 (Subluxation and dislocation of T2/T3-T3/T4 thoracic vertebra) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does S23.12 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S23.
Can S23.12 be reported alongside related conditions?
Per Excludes2 instructions, S23.12 and the following may both be reported when both are present: fracture of thoracic vertebrae (S22.0-); dislocation, sprain of sternoclavicular joint (S43.2, S43.6); strain of muscle or tendon of thorax (S29.01-); burns and corrosions (T20-T32).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as S23.12, with their registry titles.
- S23 — Dislocation and sprain of joints and ligaments of thorax
- S23.0 — Traumatic rupture of thoracic intervertebral disc
- S23.0XXA — Traumatic rupture of thoracic intervertebral disc, initial encounter
- S23.0XXD — Traumatic rupture of thoracic intervertebral disc, subsequent encounter
- S23.0XXS — Traumatic rupture of thoracic intervertebral disc, sequela
- S23.1 — Subluxation and dislocation of thoracic vertebra
- S23.10 — Subluxation and dislocation of unspecified thoracic vertebra
- S23.100 — Subluxation of unspecified thoracic vertebra
- S23.100A — Subluxation of unspecified thoracic vertebra, initial encounter
- S23.100D — Subluxation of unspecified thoracic vertebra, subsequent encounter
- S23.100S — Subluxation of unspecified thoracic vertebra, sequela
- S23.101 — Dislocation of unspecified thoracic vertebra
- S23.101A — Dislocation of unspecified thoracic vertebra, initial encounter
- S23.101D — Dislocation of unspecified thoracic vertebra, subsequent encounter
- S23.101S — Dislocation of unspecified thoracic vertebra, sequela
- S23.11 — Subluxation and dislocation of T1/T2 thoracic vertebra
- S23.110 — Subluxation of T1/T2 thoracic vertebra
- S23.110A — Subluxation of T1/T2 thoracic vertebra, initial encounter
- S23.110D — Subluxation of T1/T2 thoracic vertebra, subsequent encounter
- S23.110S — Subluxation of T1/T2 thoracic vertebra, sequela
- S23.111 — Dislocation of T1/T2 thoracic vertebra
- S23.111A — Dislocation of T1/T2 thoracic vertebra, initial encounter
- S23.111D — Dislocation of T1/T2 thoracic vertebra, subsequent encounter
- S23.111S — Dislocation of T1/T2 thoracic vertebra, sequela
- S23.120 — Subluxation of T2/T3 thoracic vertebra
- S23.120A — Subluxation of T2/T3 thoracic vertebra, initial encounter
- S23.120D — Subluxation of T2/T3 thoracic vertebra, subsequent encounter
- S23.120S — Subluxation of T2/T3 thoracic vertebra, sequela
- S23.121 — Dislocation of T2/T3 thoracic vertebra
- S23.121A — Dislocation of T2/T3 thoracic vertebra, initial encounter
- S23.121D — Dislocation of T2/T3 thoracic vertebra, subsequent encounter
- S23.121S — Dislocation of T2/T3 thoracic vertebra, sequela
- S23.122 — Subluxation of T3/T4 thoracic vertebra
- S23.122A — Subluxation of T3/T4 thoracic vertebra, initial encounter
- S23.122D — Subluxation of T3/T4 thoracic vertebra, subsequent encounter
- S23.122S — Subluxation of T3/T4 thoracic vertebra, sequela
- S23.123 — Dislocation of T3/T4 thoracic vertebra
- S23.123A — Dislocation of T3/T4 thoracic vertebra, initial encounter
- S23.123D — Dislocation of T3/T4 thoracic vertebra, subsequent encounter
- S23.123S — Dislocation of T3/T4 thoracic vertebra, sequela
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code S21.12
Laceration with foreign body of front wall of thorax without penetration into thoracic cavity