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A41 ICD-10-CM Code: Other sepsis

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Coding at a Glance

Tabular directives
4 Excludes1 · 13 Excludes2 · 6 code-first instructions

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: FY2026Effective: October 1, 2025

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. “Other” (NEC) means the condition is specified in the record but no dedicated code captures it. Confirm the documented form is not one a sibling code names before settling on A41; if the record states no specifics at all, the unspecified sibling applies instead. “Other” codes are for documented conditions the classification gives no specific code; “unspecified” codes are for records lacking the detail (Guidelines I.A.9.a, I.A.9.b).

    See the relationships section · Guide: Other vs unspecified (NEC vs NOS) →

  3. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with 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; query for the specificity its subcategory needs.

    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 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

Consider A41. Then confirm the code is valid for the date of service in the Verify section.

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 sibling 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.

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

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 structured 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-fy2026
  • A21.7 — Generalized tularemia[Excludes2]: “sepsis (due to) (in) tularemia (A21.7)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • A22.7 — Anthrax sepsis[Excludes2]: “sepsis (due to) (in) anthrax (A22.7)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • A24.1 — Acute and fulminating melioidosis[Excludes2]: “sepsis (due to) (in) melioidosis (A24.1)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • A26.7 — Erysipelothrix sepsis[Excludes2]: “sepsis (due to) (in) Erysipelothrix (A26.7)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • A28.2 — Extraintestinal yersiniosis[Excludes2]: “sepsis (due to) (in) extraintestinal yersiniosis (A28.2)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • A32.7 — Listerial sepsis[Excludes2]: “sepsis (due to) (in) listerial (A32.7)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • A39.2 — Acute meningococcemia[Excludes2]: “sepsis (due to) (in) meningococcal (A39.2-A39.4)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • 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

Common coding questions

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 FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
Coding guidelines Official source data
ICD-10-CM Official Guidelines for Coding and Reporting (FY2026), quoted by section Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v43.1 (April 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 structured 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 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.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

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 (effective October 1, 2026), 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.