A40 is the authoritative medical code for Streptococcal sepsis. This classification is used in medical billing and clinical recording to specify the clinical criteria for streptococcal sepsis (ICD-10-CM A40), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Streptococcal sepsis is a non-billable ICD-10-CM category code A40. A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): 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-).
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for A40 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- neonatal P36.0-P36.1
- puerperal sepsis O85
- sepsis due to Streptococcus, group D A41.81
Code First
Underlying conditions that must be sequenced before this code.
- , 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-)
Frequently Asked Questions (FAQ) & Clinical Guidance
Can A40 be billed directly?
No. A40 (Streptococcal sepsis) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
What can't be coded together with A40?
Per Excludes1 instructions, A40 must not be reported with: neonatal (P36.0-P36.1); puerperal sepsis (O85); sepsis due to Streptococcus, group D (A41.81).
Does A40 need to be sequenced after another code?
Yes. 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).
Codes in This Family (5)
Official ICD-10-CM classifications in the same code family as A40, with their registry titles.
- 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
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: