2019 ICD-10-CM Diagnosis Code S21.001A

Unspecified open wound of right breast, initial encounter

    2016 2017 2018 2019 Billable/Specific Code
  • S21.001A is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM S21.001A became effective on October 1, 2018.
  • This is the American ICD-10-CM version of S21.001A - other international versions of ICD-10 S21.001A may differ.
The following code(s) above S21.001A 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 S21.001A:
  • 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
Approximate Synonyms
  • Open wound of right breast
  • Open wound of the right breast
ICD-10-CM S21.001A is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 604 Trauma to the skin, subcutaneous tissue and breast with mcc
  • 605 Trauma to the skin, subcutaneous tissue and breast without mcc
  • 955 Craniotomy for multiple significant trauma
  • 956 Limb reattachment, hip and femur procedures for multiple significant trauma
  • 957 Other o.r. Procedures for multiple significant trauma with mcc
  • 958 Other o.r. Procedures for multiple significant trauma with cc
  • 959 Other o.r. Procedures for multiple significant trauma without cc/mcc
  • 963 Other multiple significant trauma with mcc
  • 964 Other multiple significant trauma with cc
  • 965 Other multiple significant trauma without cc/mcc

Convert S21.001A to ICD-9-CM

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
ICD-10-CM Codes Adjacent To S21.001A
S20.96XD …… subsequent encounter
S20.96XS …… sequela
S20.97 Other superficial bite of unspecified parts of thorax
S20.97XA …… initial encounter
S20.97XD …… subsequent encounter
S20.97XS …… sequela
S21 Open wound of thorax
S21.0 Open wound of breast
S21.00 Unspecified open wound of breast
S21.001 Unspecified open wound of right breast
S21.001A …… initial encounter
S21.001D …… subsequent encounter
S21.001S …… sequela
S21.002 Unspecified open wound of left breast
S21.002A …… initial encounter
S21.002D …… subsequent encounter
S21.002S …… sequela
S21.009 Unspecified open wound of unspecified breast
S21.009A …… initial encounter
S21.009D …… subsequent encounter
S21.009S …… sequela

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