S43.15
Posterior dislocation of acromioclavicular joint
S43.15 is a non-billable ICD-10-CM code header for posterior dislocation of acromioclavicular joint. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are S43.151 Posterior dislocation of right acromioclavicular joint, S43.152 Posterior dislocation of left acromioclavicular joint and S43.159 Posterior dislocation of unspecified acromioclavicular joint. Its coding notes include a Use additional code instruction, a Code also instruction and 7 Excludes2 entries.
7th characters
Every code below needs one of these (defined at S43).
The appropriate 7th character is to be added to each code from category S43
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Guidelines tips
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
The 7th character depends on whether the patient is in active treatment, not on who sees the patient. An aftercare Z code is not used for injury aftercare.
Each injury gets its own code unless a combination code exists, with the most serious injury first. Superficial injuries at the same site as a more severe injury are not coded. Injuries during medical care are coded as complications.
Use additional code
Add the listed code as a secondary code, if known.
Also from chapter/block level (1 note)
- code to identify any retained foreign body, if applicable (Z18.-)
Code also
Two codes may be needed to describe the condition. This note gives no sequencing order.
- any associated open wound
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
- strain of muscle, fascia and tendon of shoulder and upper arm (S46.-)
Also from chapter/block level (6 notes)
- birth trauma (P10-P15)
- obstetric trauma (O70-O71)
Includes
Further defines or gives examples of the content of the category.
- avulsion of joint or ligament of shoulder girdle
- laceration of cartilage, joint or ligament of shoulder girdle
- sprain of cartilage, joint or ligament of shoulder girdle
- traumatic hemarthrosis of joint or ligament of shoulder girdle
- traumatic rupture of joint or ligament of shoulder girdle
- traumatic subluxation of joint or ligament of shoulder girdle
- traumatic tear of joint or ligament of shoulder girdle
Also from chapter/block level (2 notes)
- injuries of axilla
- injuries of scapular region
Notes
Also from chapter/block level (2 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.
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 1 entry