ICD-10-CM Diagnosis Code S13.121

Subluxation and dislocation of atlantoaxial joint

avulsion of joint or ligament at neck level

laceration of cartilage, joint or ligament at neck level

sprain of cartilage, joint or ligament at neck level

traumatic hemarthrosis of joint or ligament at neck level

traumatic rupture of joint or ligament at neck level

traumatic subluxation of joint or ligament at neck level

traumatic tear of joint or ligament at neck level

The appropriate 7th character is to be added to each code from category S13

code to identify any retained foreign body, if applicable (Z18.-)

any associated open wound

any associated:

open wound of neck (S11.-)

spinal cord injury (S14.1-)

birth trauma (P10-P15)

obstetric trauma (O70-O71)

strain of muscle or tendon at neck level (S16.1)

fracture of cervical vertebrae (S12.0-S12.3-)

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.