2021 ICD-10-CM Diagnosis Code A40.9

Streptococcal sepsis, unspecified

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • A40.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM A40.9 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of A40.9 - other international versions of ICD-10 A40.9 may differ.
The following code(s) above A40.9 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 A40.9:
  • A00-B99
    2021 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • carrier or suspected carrier of infectious disease (Z22.-)
    • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
    • infectious and parasitic diseases specific to the perinatal period (P35-P39)
    • influenza and other acute respiratory infections (J00-J22)
    Use Additional
    • code to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
  • A40
    ICD-10-CM Diagnosis Code A40

    Streptococcal sepsis

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Code First
    • postprocedural streptococcal sepsis (T81.4-)
    • streptococcal sepsis during labor (O75.3)
    • streptococcal sepsis following abortion or ectopic or molar pregnancy (O03-O07, O08.0)
    • streptococcal sepsis following immunization (T88.0)
    • streptococcal sepsis following infusion, transfusion or therapeutic injection (T80.2-)
    Type 1 Excludes
    Streptococcal sepsis
Approximate Synonyms
  • Sepsis without acute organ dysfunction due to streptococcal septicemia
  • Septic shock acute organ dysfunction, streptococcal
  • Septic shock with acute organ dysfunction due to streptococcal septicemia
  • Severe sepsis acute organ dysfunction, streptococcal
  • Severe sepsis with acute organ dysfunction due to streptococcal septicemia
  • Streptococcal septicemia
ICD-10-CM A40.9 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems
  • 870 Septicemia or severe sepsis with mv >96 hours
  • 871 Septicemia or severe sepsis without mv >96 hours with mcc
  • 872 Septicemia or severe sepsis without mv >96 hours without mcc
  • 974 Hiv with major related condition with mcc
  • 975 Hiv with major related condition with cc
  • 976 Hiv with major related condition without cc/mcc

Convert A40.9 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
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to A40.9:
  • Disorder (of) - see also Disease
    • tubulo-interstitial (in)
      • sepsis A41.9
        ICD-10-CM Diagnosis Code A41.9

        Sepsis, unspecified organism

          2016 2017 2018 2019 2020 2021 Billable/Specific Code
        Applicable To
        • Septicemia NOS
        • streptococcal A40.9
  • Embolism (multiple) (paradoxical) I74.9
    ICD-10-CM Diagnosis Code I74.9

    Embolism and thrombosis of unspecified artery

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • pyemic (multiple) I76
      ICD-10-CM Diagnosis Code I76

      Septic arterial embolism

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Code First
      • underlying infection, such as:
      • infective endocarditis (I33.0)
      • lung abscess (J85.-)
      Type 2 Excludes
      Use Additional
      • code to identify the site of the embolism (I74.-)
      • streptococcal A40.9
  • Infection, infected, infective (opportunistic) B99.9
    ICD-10-CM Diagnosis Code B99.9

    Unspecified infectious disease

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • streptococcal NEC A49.1
      ICD-10-CM Diagnosis Code A49.1

      Streptococcal infection, unspecified site

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • generalized A40.9 (purulent)
  • Sepsis (generalized) (unspecified organism) A41.9
    ICD-10-CM Diagnosis Code A41.9

    Sepsis, unspecified organism

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Septicemia NOS

ICD-10-CM Codes Adjacent To A40.9
A39.82 Meningococcal retrobulbar neuritis
A39.83 Meningococcal arthritis
A39.84 Postmeningococcal arthritis
A39.89 Other meningococcal infections
A39.9 Meningococcal infection, unspecified
A40 Streptococcal sepsis
A40.0 Sepsis due to streptococcus, group A
A40.1 Sepsis due to streptococcus, group B
A40.3 Sepsis due to Streptococcus pneumoniae
A40.8 Other streptococcal sepsis
A40.9 Streptococcal sepsis, unspecified
A41 Other sepsis
A41.0 Sepsis due to Staphylococcus aureus
A41.01 Sepsis due to Methicillin susceptible Staphylococcus aureus
A41.02 Sepsis due to Methicillin resistant Staphylococcus aureus
A41.1 Sepsis due to other specified staphylococcus
A41.2 Sepsis due to unspecified staphylococcus
A41.3 Sepsis due to Hemophilus influenzae
A41.4 Sepsis due to anaerobes
A41.5 Sepsis due to other Gram-negative organisms
A41.50 Gram-negative sepsis, unspecified

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