S13.120D Subluxation of C1/C2 cervical vertebrae, subsequent encounter

Billable ICD-10-CM code, FY2026.

Built from S13.120 with 7th character D (subsequent encounter).

Applies from S13 Dislocation and sprain of joints and ligaments at neck level

Includes

• 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

Excludes2 (not included here)

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

Code also

• any associated open wound

7th character note

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

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Applies from S13.1 Subluxation and dislocation of cervical vertebrae

Excludes2 (not included here)

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

Code also

• any associated:
• open wound of neck (S11.-)
• spinal cord injury (S14.1-)

Applies from S13.12 Subluxation and dislocation of C1/C2 cervical vertebrae

Applicable to

• Subluxation and dislocation of atlantoaxial joint

Code annotations containing back-references to S13.120D

Back-references to S13

• Type 2 Excludes: S27 Injury of other and unspecified intrathoracic organs ("injury of cervical esophagus (S10-S19)")
• Type 2 Excludes: S27 Injury of other and unspecified intrathoracic organs ("injury of trachea (cervical) (S10-S19)")

Diagnosis Index entries for S13.120D

• Subluxation › vertebral › traumatic › cervical › atlantoaxial joint
• Subluxation › vertebral › traumatic › cervical › joint between › C1 and C2

Nearby codes

• S13.111D Dislocation of C0/C1 cervical vertebrae, subsequent encounter
• S13.111S Dislocation of C0/C1 cervical vertebrae, sequela
• S13.12 Subluxation and dislocation of C1/C2 cervical vertebrae
• S13.120 Subluxation of C1/C2 cervical vertebrae
• S13.120A Subluxation of C1/C2 cervical vertebrae, initial encounter
• S13.120D Subluxation of C1/C2 cervical vertebrae, subsequent encounter (this code)
• S13.120S Subluxation of C1/C2 cervical vertebrae, sequela
• S13.121 Dislocation of C1/C2 cervical vertebrae
• S13.121A Dislocation of C1/C2 cervical vertebrae, initial encounter
• S13.121D Dislocation of C1/C2 cervical vertebrae, subsequent encounter
• S13.121S Dislocation of C1/C2 cervical vertebrae, sequela