S21.459S

S21.459S: Open bite of unspecified back wall of thorax with penetration into thoracic cavity, sequela

Billable / specific codeICD-10-CMPOA exempt

S21.459S is a billable, specific ICD-10-CM code for open bite of unspecified back wall of thorax with penetration into thoracic cavity, sequela. It is valid for submission on a claim.

Check S21.459S with the rest of the claim: free scrubber

7th character "S": sequela

The appropriate 7th character is to be added to each code from category S21

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 inherited from the categories above S21.459S

A category’s note binds every code beneath it.

Written on S21.45: Open bite of back wall of thorax with penetration into thoracic cavity

superficial bite of back wall of thorax (S20.47)

Written on S21: Open wound of thorax

traumatic amputation (partial) of thorax (S28.1)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

S21.459S is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A56717Billing and Coding: Respiratory Therapy (Respiratory Care)

Code history

Unchanged in every release from FY2024 to FY2027.