2019 ICD-10-CM Diagnosis Code S21.25

Open bite of back wall of thorax without penetration into thoracic cavity

    2016 2017 2018 2019 Non-Billable/Non-Specific Code
  • S21.25 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • Short description: Open bite of back wall of thorax w/o penet thoracic cavity
  • The 2019 edition of ICD-10-CM S21.25 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of S21.25 - other international versions of ICD-10 S21.25 may differ.
Applicable To
  • Bite of back wall of thorax NOS
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as S21.25. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • superficial bite of back wall of thorax (
    ICD-10-CM Diagnosis Code S20.47

    Other superficial bite of back wall of thorax

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • open bite of back wall of thorax (S21.24)
    S20.47
    )
The following code(s) above S21.25 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 S21.25:
  • S00-T88
    2019 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    Note
    • 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
    2019 ICD-10-CM Range S20-S29

    Injuries to the thorax

    Includes
    • 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
  • S21
    ICD-10-CM Diagnosis Code S21

    Open wound of thorax

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Code Also
    • any associated injury, such as:
    • injury of heart (S26.-)
    • injury of intrathoracic organs (S27.-)
    • rib fracture (S22.3-, S22.4-)
    • spinal cord injury (S24.0-, S24.1-)
    • traumatic hemopneumothorax (S27.3)
    • traumatic hemothorax (S27.1)
    • traumatic pneumothorax (S27.0)
    • wound infection
    Type 1 Excludes
    • traumatic amputation (partial) of thorax (S28.1)
    Open wound of 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

Diagnosis Index entries containing back-references to S21.25:
  • Bite(s) (animal) (human)
    • thorax, thoracic (wall) S21.95
      ICD-10-CM Diagnosis Code S21.95

      Open bite of unspecified part of thorax

        2016 2017 2018 2019 Non-Billable/Non-Specific Code
      Type 1 Excludes
      • superficial bite of thorax (S20.97)

ICD-10-CM Codes Adjacent To S21.25
S21.241D …… subsequent encounter
S21.241S …… sequela
S21.242 Puncture wound with foreign body of left back wall of thorax without penetration into thoracic cavity
S21.242A …… initial encounter
S21.242D …… subsequent encounter
S21.242S …… sequela
S21.249 Puncture wound with foreign body of unspecified back wall of thorax without penetration into thoracic cavity
S21.249A …… initial encounter
S21.249D …… subsequent encounter
S21.249S …… sequela
S21.25 Open bite of back wall of thorax without penetration into thoracic cavity
S21.251 Open bite of right back wall of thorax without penetration into thoracic cavity
S21.251A …… initial encounter
S21.251D …… subsequent encounter
S21.251S …… sequela
S21.252 Open bite of left back wall of thorax without penetration into thoracic cavity
S21.252A …… initial encounter
S21.252D …… subsequent encounter
S21.252S …… sequela
S21.259 Open bite of unspecified back wall of thorax without penetration into thoracic cavity
S21.259A …… initial encounter

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