DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

A40 Streptococcal sepsis

  • Header · not billable

A40 is not billable. The category heads 5 billable codes in FY2027: the 5 codes directly below it.

Index → code

  • Pneumococcemia → A40.3
  • Sepsis (generalized) (unspecified organism)pneumococcal → A40.3
  • Pyemia, pyemic (fever) (infection) (purulent)pneumococcal → A40.3

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. A30-A49 Other bacterial diseases (A30-A49)
  3. A40 Streptococcal sepsis
Billable codes
5
Subdivisions
5
CC / MCC codes
0 / 5
HCC V28 codes
5
New FY2027
0
Index entries
17

Codes in A40

  1. A40.0
    Sepsis due to streptococcus, group A
    BillableMCC2
  2. A40.1
    Sepsis due to streptococcus, group B
    BillableMCC2
  3. A40.3
    Sepsis due to Streptococcus pneumoniae
    BillableMCC2
    Inclusion terms 1

    Inclusion terms

    • Pneumococcal sepsis
  4. A40.8
    Other streptococcal sepsis
    BillableMCC2
  5. A40.9
    Streptococcal sepsis, unspecified
    BillableMCC2

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At A40

Excludes1

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

Code first

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

Notes that also apply

Chapter 1 instructions (Includes 1, Excludes2 5, Use additional code 1): printed on the chapter 1 page.

Index entries

  • Pneumococcemia → A40.3
  • Pyemia, pyemic (fever) (infection) (purulent)pneumococcal → A40.3
  • Sepsis (generalized) (unspecified organism)pneumococcal → A40.3
  • Sepsis (generalized) (unspecified organism)Streptococcus, streptococcal → A40.9
  • Sepsis (generalized) (unspecified organism)Streptococcus, streptococcalpyogenes → A40.0
  • Sepsis (generalized) (unspecified organism)Streptococcus, streptococcalagalactiae → A40.1
  • Embolism (multiple) (paradoxical)pyemic (multiple)pneumococcal → A40.3
  • Infection, infected, infective (opportunistic)pneumococcus, pneumococcal NECgeneralized (purulent) → A40.3
  • Sepsis (generalized) (unspecified organism)Streptococcus, streptococcalpneumoniae → A40.3
  • Sepsis (generalized) (unspecified organism)Streptococcus, streptococcalspecified NEC → A40.8
  • Embolism (multiple) (paradoxical)pyemic (multiple)streptococcal → A40.9
  • Infection, infected, infective (opportunistic)streptococcal NECgeneralized (purulent) → A40.9
  • Disorder (of)glomerular (in)sepsis NECstreptococcal → A40.- [N08]
  • Glomerulonephritisin (due to)sepsisstreptococcal → A40- [N08]
  • Sepsis (generalized) (unspecified organism)Streptococcus, streptococcalgroupA → A40.0
  • Sepsis (generalized) (unspecified organism)Streptococcus, streptococcalgroupB → A40.1
  • Disorder (of)tubulo-interstitial (in)sepsisstreptococcal → A40.9 [N16]

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy