S21.452A
S21.452A: Open bite of left back wall of thorax with penetration into thoracic cavity, initial encounter
Billable / specific codeICD-10-CMleft
S21.452A is a billable, specific ICD-10-CM code for open bite of left back wall of thorax with penetration into thoracic cavity, initial encounter. It is valid for submission on a claim.
Check S21.452A with the rest of the claim: free scrubber7th character "A": initial encounter
The appropriate 7th character is to be added to each code from category S21
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
S21.452A is named in 13 Medicare coverage policies: 13 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A53058Billing and Coding: Home Health Physical Therapy
- A53065Billing and Coding: Outpatient Physical Therapy
- A54767Billing and Coding: Medicare Preventive Coverage for Certain Vaccines
- A55909Billing and Coding: Wound Care
Code history
Unchanged in every release from FY2024 to FY2027.