S23.170A - Subluxation of T12/L1 thoracic vertebra, initial encounter
ICD-10-CM Chapter 19: Injury, poisoning and certain other consequences of external causes · S20-S29 Injuries to the thorax (S20-S29) · Subcategory of S23.170 · FY2027
7th character A: initial encounter
Coding Guidance
7th character A: initial encounter.
Includes, Excludes and Coding Notes
Not part of this code; report both codes when the patient has both conditions.
- fracture of thoracic vertebrae (S22.0-)
Report an additional code when both conditions apply.
- any associated:
- open wound of thorax (S21.-)
- spinal cord injury (S24.0-, S24.1-)
Conditions this code covers.
- 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
Not part of this code; report both codes when the patient has both conditions.
- dislocation, sprain of sternoclavicular joint (S43.2, S43.6)
- strain of muscle or tendon of thorax (S29.01-)
Report an additional code when both conditions apply.
- any associated open wound
Conditions this code covers.
- injuries of breast
- injuries of chest (wall)
- injuries of interscapular area
Not part of this code; report both codes when the patient has both conditions.
- 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)
Not part of this code; report both codes when the patient has both conditions.
- birth trauma (P10-P15)
- obstetric trauma (O70-O71)
Add a secondary code to identify the associated condition or cause when it is documented.
- code to identify any retained foreign body, if applicable (Z18.-)
Instructional notes from the ICD-10-CM tabular list.
- 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.
Related condition guides
Documentation requirements, coding pitfalls and FAQs for conditions coded with S23.170A.
Codes at the same level as S23.170A