DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

A41 Other sepsis

  • Header · not billable

A41 is not billable. The category heads 15 billable codes in FY2027, grouped under 8 subdivisions.

Index → code

  • Septicemia → A41.9
  • Staphylococcemia → A41.2
  • Sepsis (generalized) (unspecified organism) → A41.9

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. A30-A49 Other bacterial diseases (A30-A49)
  3. A41 Other sepsis
Billable codes
15
Subdivisions
8
CC / MCC codes
0 / 15
HCC V28 codes
15
New FY2027
0
Index entries
46

Codes in A41

  1. A41.0
    Sepsis due to Staphylococcus aureus
    Header
  2. A41.01
    Sepsis due to Methicillin susceptible Staphylococcus aureus
    BillableMCC2
    Inclusion terms 2

    Inclusion terms

    • MSSA sepsis
    • Staphylococcus aureus sepsis NOS
  3. A41.02
    Sepsis due to Methicillin resistant Staphylococcus aureus
    BillableMCC2
  4. A41.1
    Sepsis due to other specified staphylococcus
    BillableMCC2
    Inclusion terms 1

    Inclusion terms

    • Coagulase negative staphylococcus sepsis
  5. A41.2
    Sepsis due to unspecified staphylococcus
    BillableMCC2
  6. A41.3
    Sepsis due to Hemophilus influenzae
    BillableMCC2
  7. A41.4
    Sepsis due to anaerobes
    BillableMCC2
    Excludes1 1

    Excludes1

    • gas gangrene (A48.0) A48.0
  8. A41.5
    Sepsis due to other Gram-negative organisms
    Header
  9. A41.50
    Gram-negative sepsis, unspecified
    BillableMCC2
    Inclusion terms 1

    Inclusion terms

    • Gram-negative sepsis NOS
  10. A41.51
    Sepsis due to Escherichia coli [E. coli]
    BillableMCC2
  11. A41.52
    Sepsis due to Pseudomonas
    BillableMCC2
    Inclusion terms 1

    Inclusion terms

    • Pseudomonas aeruginosa
  12. A41.53
    Sepsis due to Serratia
    BillableMCC2
  13. A41.54
    Sepsis due to Acinetobacter baumannii
    BillableMCC2
  14. A41.59
    Other Gram-negative sepsis
    BillableMCC2
  15. A41.8
    Other specified sepsis
    Header
  16. A41.81
    Sepsis due to Enterococcus
    BillableMCC2
  17. A41.89
    Other specified sepsis
    BillableMCC2
  18. A41.9
    Sepsis, unspecified organism
    BillableMCC2
    Inclusion terms 1

    Inclusion terms

    • Septicemia NOS

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 A41

Excludes1

  • bacteremia NOS (R78.81) R78.81
  • neonatal (P36.-) P36
  • puerperal sepsis (O85) O85
  • streptococcal sepsis (A40.-) A40

Excludes2

  • sepsis (due to) (in) actinomycotic (A42.7) A42.7
  • sepsis (due to) (in) anthrax (A22.7) A22.7
  • sepsis (due to) (in) candidal (B37.7) B37.7
  • sepsis (due to) (in) Erysipelothrix (A26.7) A26.7
  • sepsis (due to) (in) extraintestinal yersiniosis (A28.2) A28.2
  • sepsis (due to) (in) gonococcal (A54.86) A54.86
  • sepsis (due to) (in) herpesviral (B00.7) B00.7
  • sepsis (due to) (in) listerial (A32.7) A32.7
  • sepsis (due to) (in) melioidosis (A24.1) A24.1
  • sepsis (due to) (in) meningococcal (A39.2-A39.4) A39.2 A39.4
  • sepsis (due to) (in) plague (A20.7) A20.7
  • sepsis (due to) (in) tularemia (A21.7) A21.7
  • toxic shock syndrome (A48.3) A48.3

Code first

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

  • Staphylococcemia → A41.2
  • Sepsis (generalized) (unspecified organism) → A41.9
  • Septicemia → A41.9
  • MSSA (Methicillin susceptible Staphylococcus aureus)sepsis → A41.01
  • Sepsis (generalized) (unspecified organism)MSSA (Methicillin susceptible Staphylococcus aureus) → A41.01
  • MRSA (Methicillin resistant Staphylococcus aureus)sepsis → A41.02
  • Sepsis (generalized) (unspecified organism)MRSA (Methicillin resistant Staphylococcus aureus) → A41.02
  • Sepsis (generalized) (unspecified organism)Staphylococcus, staphylococcal → A41.2
  • Sepsis (generalized) (unspecified organism)Haemophilus influenzae → A41.3
  • Sepsis (generalized) (unspecified organism)anaerobic → A41.4
  • Sepsis (generalized) (unspecified organism)Gram-negative (organism) → A41.50
  • Colibacillosisgeneralized → A41.51
  • Sepsis (generalized) (unspecified organism)Escherichia coli (E. coli) → A41.51
  • Sepsis (generalized) (unspecified organism)Pseudomonas (pseudomonas aeruginosa) → A41.52
  • Sepsis (generalized) (unspecified organism)Serratia → A41.53
  • Sepsis (generalized) (unspecified organism)Acinetobacter baumannii → A41.54
  • Sepsis (generalized) (unspecified organism)Cronobacter → A41.59
  • Sepsis (generalized) (unspecified organism)other gram-negative → A41.59
  • Sepsis (generalized) (unspecified organism)Enterococcus → A41.81
  • Pyemia, pyemic (fever) (infection) (purulent)specified organism NEC → A41.89
  • Sepsis (generalized) (unspecified organism)specified organism NEC → A41.89
  • Sepsis (generalized) (unspecified organism)cryptogenic → A41.9
  • Sepsis (generalized) (unspecified organism)gangrenous → A41.9
  • Disorder (of)glomerular (in)sepsis NEC → A41.- [N08]
  • Sepsis (generalized) (unspecified organism)Staphylococcus, staphylococcalaureus (methicillin susceptible) (MSSA) → A41.01
  • Sepsis (generalized) (unspecified organism)Staphylococcus, staphylococcalcoagulase-negative → A41.1
  • Sepsis (generalized) (unspecified organism)Staphylococcus, staphylococcalspecified NEC → A41.1
  • Embolism (multiple) (paradoxical)pyemic (multiple)staphylococcal → A41.2
  • Infection, infected, infective (opportunistic)staphylococcal, unspecified sitegeneralized (purulent) → A41.2
  • Embolism (multiple) (paradoxical)pyemic (multiple)Hemophilus influenzae → A41.3
  • Infection, infected, infective (opportunistic)Hemophilusgeneralized → A41.3
  • Sepsis (generalized) (unspecified organism)Gram-negative (organism)anaerobic → A41.4
  • Infection, infected, infective (opportunistic)Escherichia (E.) coli NECgeneralized → A41.51
  • Infection, infected, infective (opportunistic)Pseudomonas NECgeneralized → A41.52
  • Infection, infected, infective (opportunistic)Serratia NECgeneralized → A41.53
  • Infection, infected, infective (opportunistic)Cronobacter (sakazakii)generalized → A41.59
  • Embolism (multiple) (paradoxical)pyemic (multiple)specified organism NEC → A41.89
  • Disorder (of)tubulo-interstitial (in)sepsis → A41.9 [N16]
  • Glomerulonephritisin (due to)sepsis → A41.9 [N08]
  • Pyelonephritisin (due to)sepsis → A41.9 [N16]

6 more, longer entries are not listed; the search box finds them by word.

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

Hierarchy