2021 ICD-10-CM Diagnosis Code S20.349

External constriction of unspecified front wall of thorax

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • S20.349 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM S20.349 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of S20.349 - other international versions of ICD-10 S20.349 may differ.
The following code(s) above S20.349 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to S20.349:
  • S00-T88
    2021 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    • 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
    Type 1 Excludes
    Use Additional
    • code to identify any retained foreign body, if applicable (Z18.-)
    Injury, poisoning and certain other consequences of external causes
  • S20-S29
    2021 ICD-10-CM Range S20-S29

    Injuries to the thorax

    • injuries of breast
    • injuries of chest (wall)
    • injuries of interscapular area
    Type 2 Excludes
    • 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)
    Injuries to the thorax
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to S20.349:

ICD-10-CM Codes Adjacent To S20.349
S20.342D …… subsequent encounter
S20.342S …… sequela
S20.343 External constriction of bilateral front wall of thorax
S20.343A …… initial encounter
S20.343D …… subsequent encounter
S20.343S …… sequela
S20.344 External constriction of middle front wall of thorax
S20.344A …… initial encounter
S20.344D …… subsequent encounter
S20.344S …… sequela
S20.349 External constriction of unspecified front wall of thorax
S20.349A …… initial encounter
S20.349D …… subsequent encounter
S20.349S …… sequela
S20.35 Superficial foreign body of front wall of thorax
S20.351 Superficial foreign body of right front wall of thorax
S20.351A …… initial encounter
S20.351D …… subsequent encounter
S20.351S …… sequela
S20.352 Superficial foreign body of left front wall of thorax
S20.352A …… initial encounter

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.