U.S. ICD-10-CM · FY 2027

A40 ICD-10-CM Code: Streptococcal sepsis

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

A40

Streptococcal sepsis

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where A40 sits

  1. 1

    Chapter 1

    Certain infectious and parasitic diseases (A00-B99)

  2. 2

    Section

    Other bacterial diseases (A30-A49)

  3. 3

    Category A40

    Streptococcal sepsis

  4. 4

    Code A40

    Streptococcal sepsis

More specific choices

Codes under A40

A40 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for A40.

Code first

  • , if applicable, postprocedural sepsis (T81.44-)
  • sepsis due to central venous catheter (T80.211-)
  • streptococcal sepsis during labor (O75.3)
  • streptococcal sepsis following abortion or ectopic or molar pregnancy (O03.37, O03.87, O04.87, O07.37, O08.82)
  • streptococcal sepsis following immunization (T88.0-)
  • streptococcal sepsis following infusion, transfusion or therapeutic injection (T80.22-, T80.29-)

Use additional code

No “use additional code” instruction is listed for A40.

Excludes1

Conditions that should not be reported together with this code.

  • neonatal (P36.0-P36.1)
  • puerperal sepsis (O85)
  • sepsis due to Streptococcus, group D (A41.81)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for A40.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code A40 mean?

A40 is the FY 2027 U.S. ICD-10-CM code for “Streptococcal sepsis.”

Is A40 a billable or specific ICD-10-CM code?

No. A40 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is A40 located in ICD-10-CM?

A40 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Other bacterial diseases (A30-A49) (A30–A49), under category A40, Streptococcal sepsis.

What coding notes are listed for A40?

No inclusion terms are listed for A40 in this reference record. Code-first instructions: , if applicable, postprocedural sepsis (T81.44-); sepsis due to central venous catheter (T80.211-); streptococcal sepsis during labor (O75.3); streptococcal sepsis following abortion or ectopic or molar pregnancy (O03.37, O03.87, O04.87, O07.37, O08.82); streptococcal sepsis following immunization (T88.0-); streptococcal sepsis following infusion, transfusion or therapeutic injection (T80.22-, T80.29-). Excludes1 notes: neonatal (P36.0-P36.1); puerperal sepsis (O85); sepsis due to Streptococcus, group D (A41.81). No Excludes2 note is listed.

Ready to transform your clinical documentation?

Join Vero and see how effortless documentation can be.

  • No credit card required

  • Cancel anytime