ICD-10-CM › S00-T88 › S20-S29 › S20.344 External constriction of middle... › S20.344A

S20.344A

External constriction of middle front wall of thorax, initial encounter

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2021 onwards.

What has happened to this code

Every change the publisher made, from 2021 to now.

  1. FY2021 Added to the code set External constriction of middle front wall of thorax, initial encounter

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from S20 Superficial injury of thorax

Seventh character required

  • The appropriate 7th character is to be added to each code from category S20

Inherited from the S20-S29 section Injuries to the thorax (S20-S29)

Excludes2 - not included here

  • burns and corrosions (T20-T32)
  • effects of foreign body in bronchus (T17.5)
  • effects of foreign body in esophagus (T18.1)
  • effects of foreign body in lung (T17.8)
  • effects of foreign body in trachea (T17.4)
  • frostbite (T33-T34)
  • injuries of axilla
  • injuries of clavicle
  • injuries of scapular region
  • injuries of shoulder
  • insect bite or sting, venomous (T63.4)

Includes

  • injuries of breast
  • injuries of chest (wall)
  • injuries of interscapular area

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Codes in the same group

CodeDescriptionStatus
S20.344D External constriction of middle front wall of thorax, subsequent encounter Valid
S20.344S External constriction of middle front wall of thorax, sequela Valid