A40.9 Streptococcal sepsis, unspecified
Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.
Applies from A40 Streptococcal sepsis
Excludes1 (never code together)
- neonatal (P36.0-P36.1)
- puerperal sepsis (O85)
- sepsis due to Streptococcus, group D (A41.81)
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-)
Risk adjustment (HCC)
- CMS-HCC V28: HCC 2 — Septicemia, Sepsis, Systemic Inflammatory Response Syndrome/Shock
- CMS-HCC V22: HCC 2 — Septicemia, Sepsis, Systemic Inflammatory Response Syndrome/Shock
- ESRD V24: HCC 2
MS-DRG index
Defines the logic of DRG(s) 791 in MDC 15.
Approximate ICD-9-CM (GEMs)
038.0 Streptococcal septicemia (approximate)995.91 Sepsis (approximate)
Code annotations containing back-references to A40.9
Back-references to A40.9
- Code First:
N08 Glomerular disorders in diseases classified elsewhere ("sepsis (A40.0-A41.9)") - Code First:
N16 Renal tubulo-interstitial disorders in diseases classified elsewhere ("sepsis (A40.0-A41.9)")
Back-references to A40
- Type 1 Excludes:
A41 Other sepsis ("streptococcal sepsis (A40.-)") - Use Additional:
J95.02 Infection of tracheostomy stoma ("sepsis (A40, A41.-)") - Use Additional:
K94.02 Colostomy infection ("sepsis (A40.-, A41.-)") - Use Additional:
K94.12 Enterostomy infection ("sepsis (A40.-, A41.-)") - Use Additional:
K94.22 Gastrostomy infection ("sepsis (A40.-, A41.-)") - Use Additional:
K95.01 Infection due to gastric band procedure ("sepsis (A40.-, A41.-)") - Use Additional:
K95.81 Infection due to other bariatric procedure ("sepsis (A40.-, A41.-)")
Diagnosis Index entries for A40.9
- Disorder (of) › tubulo-interstitial (in) › sepsis › streptococcal
- Embolism (multiple) (paradoxical) › pyemic (multiple) › streptococcal
- Infection, infected, infective (opportunistic) › streptococcal NEC › generalized (purulent)
- Sepsis (generalized) (unspecified organism) › Streptococcus, streptococcal
Nearby codes
A40 Streptococcal sepsisA40.0 Sepsis due to streptococcus, group AA40.1 Sepsis due to streptococcus, group BA40.3 Sepsis due to Streptococcus pneumoniaeA40.8 Other streptococcal sepsisA40.9 Streptococcal sepsis, unspecified (this code)