Skip to main content

A41 ICD-10-CM Code: Other sepsis

Compare with another code for A41Check this code on a claim

Billing Status: NO. This is a non-billable ICD-10-CM code: report a more specific billable code beneath it.

Coding at a Glance

Official instructions
4 Excludes1 · 13 Excludes2 · 6 code-first instructions

What these terms mean →

Category · FY2027A non-billable heading in the tabular list: report a more specific code beneath it.

What you need to know

Source: CMS/NCHS Official ICD-10-CM tabular notes, quoted. From the CMS/NCHS tabular list for the release in force. A note the category or block publishes applies to this code too, and is marked with where it comes from.

Code firstSequence the underlying condition before this code

+2 more in Instructions

Excludes1Not reported with this code unless documented as unrelated
  • bacteremia NOS (R78.81)
  • neonatal (P36.-)
  • puerperal sepsis (O85)
  • streptococcal sepsis (A40.-)
Excludes2Not included here; may be reported together
  • sepsis (due to) (in) actinomycotic (A42.7)
  • sepsis (due to) (in) anthrax (A22.7)
  • sepsis (due to) (in) candidal (B37.7)
  • sepsis (due to) (in) Erysipelothrix (A26.7)

+9 more in Instructions

Where it sits Source: CMS/NCHS

Under:Chapter 1: Certain Infectious and Parasitic DiseasesA30-A49 Other bacterial diseases

Codes under A41 (8)

  • A41.0Sepsis due to Staphylococcus aureusNot billable
  • A41.1Sepsis due to other specified staphylococcusBillable
  • A41.2Sepsis due to unspecified staphylococcusBillable
  • A41.3Sepsis due to Hemophilus influenzaeBillable
  • A41.4Sepsis due to anaerobesBillable
  • A41.5Sepsis due to other Gram-negative organismsNot billable
  • A41.8Other specified sepsisNot billable
  • A41.9Sepsis, unspecified organismBillable

Most relevant related codes MedCoder-derived

Read off the official notes above and this code’s own position in the tabular list. Which to report is a documentation question; Compare shows the two side by side.

CompareCheck ClaimView Related Codes

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for A41 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2027Effective: October 1, 2026

Trace:FY2027 changesChange historyRelease, file and checksum

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Code First

Underlying conditions that must be sequenced before this code.

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

Coder workflow for A41

MedCoder structured workflow — derived from this code’s own official record

Before you code A41

  1. A41 is not reportable as written. Select the more specific code beneath it that the documentation supports. Codes are reported to the highest level of specificity the classification provides (Guidelines I.B.2).

    ReviewA41.0, A41.1, A41.2, A41.3, A41.4, A41.5, A41.8, A41.9

    See the relationships section · Guide: How to choose an ICD-10-CM code →

  2. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with the code beneath A41. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

    See the official tabular notes

Choose the right path

  1. Does the documentation support one of the more specific codes beneath A41?
    Yes → Select that code and continue the checks below on its own page.
    No → A41 cannot be reported as written. Where the codes beneath it include an unspecified code, that code applies when the record goes no further; otherwise query for the missing detail.

    ReviewA41.0, A41.1, A41.2, A41.3, A41.4, A41.5, A41.8, A41.9

  2. Does the documentation support a condition named in A41’s Excludes1 note?
    Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
    No → Continue.

    ReviewR78.81, P36, O85, A40

  3. Is the underlying (etiologic) condition the Code First note names documented?
    Yes → Sequence the underlying condition first, then the code beneath A41.
    No → Continue; do not add an underlying condition the record does not document.

    ReviewT81.44, T80.211, O75.3, O03.37, O03.87, O04.87

Report the code beneath A41 that the documentation supports, not A41 itself. Then confirm that code is valid for the date of service on its own page.

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
The underlying (etiologic) condition
Named in the Code First note; sequenced before this code when documented (Guidelines I.A.13).
Any detail beyond this code’s title
What the record states that a more specific code would capture — or its absence, which itself supports the unspecified code.

Official instructions as workflow

  • Excludes1 — check before selecting A41(4 notes)

    Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with A41: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

    CompareR78.81, P36, O85, A40

    See the official tabular notes · Guidelines I.A.12.a

  • Excludes2 — not part of A41(13 notes)

    Coding workflow: The conditions named in this note are not included in A41. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

    CompareA42.7, A22.7, B37.7, A26.7, A28.2, A54.86

    See the official tabular notes · Guidelines I.A.12.b

  • Code First — sequencing check(6 notes)

    Coding workflow: Check whether the underlying or etiologic condition the note names is documented. When it is, sequence it before A41. Do not add an underlying condition the record does not document.

    ReviewT81.44, T80.211, O75.3, O03.37, O03.87, O04.87

    See the official tabular notes · Guidelines I.A.13

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: Both the condition A41 describes and a condition named in its Excludes1 note are documented for the same encounter.

Coding question: Can both codes be reported?

Path: Review the Excludes1 note and the excluded code, and look for a provider statement on whether the two conditions are related.

Reason: Excludes1 means the two are not coded together; the exception is when the record shows the conditions are unrelated to each other (Guidelines I.A.12.a).

ReviewR78.81, P36, O85, A40

Documentation: The underlying condition the Code First note names is documented alongside this condition.

Coding question: How are the two sequenced?

Path: Review the Code First note.

Reason: The underlying condition is sequenced first and the manifestation follows (Guidelines I.A.13).

ReviewT81.44, T80.211, O75.3, O03.37, O03.87, O04.87

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Don’t confuse A41 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of A41 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

  • R78.81— Excludes1 conflict (Excludes1 — generally not reported together)

    Not coded here — the tabular list excludes this pair for the same encounter.

    Not reported together with this code, except where the two conditions are documented as unrelated.

    What moves you there: Documentation of bacteremia NOS moves the case to R78.81; the two are not reported together unless documented as unrelated.

    Full comparison: A41 vs R78.81 →

  • P36— Excludes1 conflict (Excludes1 — generally not reported together)

    Not coded here — the tabular list excludes this pair for the same encounter.

    Not reported together with this code, except where the two conditions are documented as unrelated.

    What moves you there: Documentation of neonatal moves the case to P36; the two are not reported together unless documented as unrelated.

    Full comparison: A41 vs P36 →

  • O85— Excludes1 conflict (Excludes1 — generally not reported together)

    Not coded here — the tabular list excludes this pair for the same encounter.

    Not reported together with this code, except where the two conditions are documented as unrelated.

    What moves you there: Documentation of puerperal sepsis moves the case to O85; the two are not reported together unless documented as unrelated.

    Full comparison: A41 vs O85 →

  • A40— Excludes1 conflict (Excludes1 — generally not reported together)

    Not coded here — the tabular list excludes this pair for the same encounter.

    Not reported together with this code, except where the two conditions are documented as unrelated.

    What moves you there: Documentation of streptococcal sepsis moves the case to A40; the two are not reported together unless documented as unrelated.

    Full comparison: A41 vs A40 →

  • A42.7— Excludes2 relationship (Informational)

    Distinct conditions — both may be reported.

    A distinct condition — both may be reported when both are documented.

    What moves you there: Documentation of sepsis (due to) (in) actinomycotic adds A42.7; it is not part of this code and both may be reported when both are documented.

    Full comparison: A41 vs A42.7 →

  • A22.7— Excludes2 relationship (Informational)

    Distinct conditions — both may be reported.

    A distinct condition — both may be reported when both are documented.

    What moves you there: Documentation of sepsis (due to) (in) anthrax adds A22.7; it is not part of this code and both may be reported when both are documented.

    Full comparison: A41 vs A22.7 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Coding context

Guidelines, coding notes, decision aids, relationships (with MS-DRG and CCSR classification), hierarchy, HCC, coverage and the context map: what a coder reaches for after the core. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.

Code Overview

Other sepsis is a non-billable ICD-10-CM category code (A41). A more specific billable subcode must be selected for claims submission.

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Official Coding Guidelines

Official source data — quoted verbatim from the CMS/NCHS Official Guidelines

Verbatim excerpts from the ICD-10-CM Official Guidelines for Coding and Reporting (CMS/NCHS) that govern this code.

Chapter 15: Pregnancy, Childbirth, and the Puerperium (O00-O9A)

k. Puerperal sepsis Code O85, Puerperal sepsis, should be assigned with a secondary code to identify the causal organism (e.g., for a bacterial infection, assign a code from category B95-B96, Bacterial infections in conditions classified elsewhere). A code from category A40, Streptococcal sepsis, or A41, Other sepsis, should not be used for puerperal sepsis. If applicable, use additional codes to identify severe sepsis (R65.2-) and any associated acute organ dysfunction.

Decision Points

The directives on this code's own record, as a pre-claim checklist.

  1. Sequencing: 6 Code First instructions — the underlying condition is sequenced before this code when present. See the Code First notes
  2. 4 Excludes1 entries — codes named there are generally not reported together with this code (Guidelines I.A.12.a). See the Excludes1 notes
  3. 13 Excludes2 entries — those conditions are not part of this code and may be reported additionally when documented. See the Excludes2 notes

Checklist rows are derived from this code's own official directives; the wording of each check is MedCoder editorial. The official notes themselves are in the sections each row links to.

Verify Before Coding

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder-derived relationships — computed from published CMS and AHRQ datasets

Other codes that name A41 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 3 Code First instructions across 2 chapters: I5A — Non-ischemic myocardial injury (non-traumatic), N08 — Glomerular disorders in diseases classified elsewhere, N16 — Renal tubulo-interstitial disorders in diseases classified elsewhere.

Each of these codes carries a Code First note naming this condition — when that code is reported, THIS code is sequenced first, ahead of it.

Referenced by 6 Use Additional Code instructions across 2 chapters: J95.02 — Infection of tracheostomy stoma, K94.02 — Colostomy infection, K94.12 — Enterostomy infection, K94.22 — Gastrostomy infection, K95.01 — Infection due to gastric band procedure, K95.81 — Infection due to other bariatric procedure.

These codes instruct coders to additionally report this code when it applies.

Contextual Map

Every relationship of A41 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run A41 with these 24 related codes in Claim Check

Hierarchy

Excludes1

Excludes2 (15)

  • A20.7 — Septicemic plague[Excludes2]: “sepsis (due to) (in) plague (A20.7)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2027
  • A21.7 — Generalized tularemia[Excludes2]: “sepsis (due to) (in) tularemia (A21.7)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2027
  • A22.7 — Anthrax sepsis[Excludes2]: “sepsis (due to) (in) anthrax (A22.7)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2027
  • A24.1 — Acute and fulminating melioidosis[Excludes2]: “sepsis (due to) (in) melioidosis (A24.1)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2027
  • A26.7 — Erysipelothrix sepsis[Excludes2]: “sepsis (due to) (in) Erysipelothrix (A26.7)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2027
  • A28.2 — Extraintestinal yersiniosis[Excludes2]: “sepsis (due to) (in) extraintestinal yersiniosis (A28.2)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2027
  • A32.7 — Listerial sepsis[Excludes2]: “sepsis (due to) (in) listerial (A32.7)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2027
  • A39.2 — Acute meningococcemia[Excludes2]: “sepsis (due to) (in) meningococcal (A39.2-A39.4)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2027
  • and 7 more

Code First (11)

Referenced by Code First instructions

Referenced by Use Additional Code instructions

Nearest codes (18)

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Reference

Index terms and tables, published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.

Common coding questions

MedCoder editorial

Can A41 be billed directly?

No. A41 (Other sepsis) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2027 tabular list, index and tables, effective October 1, 2026 Release, file and checksum · Publisher’s page
Coding guidelines Official source data
ICD-10-CM Official Guidelines for Coding and Reporting (FY2027), quoted by section Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v44.0 (October 2026) Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder-derived relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder editorial explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources

Labels on this page: Official source data · MedCoder-derived relationship · MedCoder editorial explanation. How to read the labels · All data sources and release dates · CMS coding rules

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "A41 — Other sepsis." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/a41-other-sepsis

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Other sepsis

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027, and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to A41 in its code family, with their registry titles.