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E11.0 ICD-10-CM Code: Type 2 diabetes mellitus with hyperosmolarity

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

Coding at a Glance

Tabular directives
3 inclusion terms · 8 Excludes1 · 5 use-additional codes

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for E11.0 in the official ICD-10-CM tabular list, quoted as published.

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

Notes without a marker are published on E11.0 itself; “inherited from” names the category or block whose note applies here.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • diabetes (mellitus) due to insulin secretory defect
  • diabetes NOS
  • insulin resistant diabetes (mellitus)

Source: inherited from E11

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).

Source: inherited from E11

Use Additional Code

Supplementary codes the tabular list directs you to add.

  • Use additional code to identify control using:
  • injectable non-insulin antidiabetic drugs (Z79.85)
  • insulin (Z79.4)
  • oral antidiabetic drugs (Z79.84)
  • oral hypoglycemic drugs (Z79.84)

Source: inherited from E11

Coder workflow for E11.0

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

Before you code E11.0

  1. E11.0 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).

    ReviewE11.00, E11.01

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

  2. E11.0’s title joins a condition with an associated condition or complication. Confirm each component is documented. Where the classification presumes the link through the “with” convention, only a provider statement that the conditions are unrelated defeats it. A combination code is assigned only when it fully identifies the documented conditions; a required second code for the stage, type or manifestation is still reported when the notes ask for it (Guidelines I.B.9, I.A.15).

    Guide: Combination codes →

  3. Confirm the documented diabetes type or cause (the E08–E13 categories are separated by it) and every documented complication or manifestation; the code is built from the type first and the complication second. Then work the category’s Use Additional Code notes for medication and control status. Type 2 is the default only when the type is not documented, and insulin or other medication use does not by itself establish the type (Guidelines I.C.4.a.2, I.C.4.a.3).

    Guide: Diabetes with multiple complications →

  4. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with E11.0. 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 E11.0?
    Yes → Select that code and continue the checks below on its own page.
    No → E11.0 cannot be reported as written; query for the specificity its subcategory needs.

    ReviewE11.00, E11.01

  2. Does the documentation support a condition named in E11.0’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.

    ReviewE08, E09, O24.4, P70.2, E13, E10

Consider E11.0. Then work the Use Additional Code note, and 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 associated condition or complication
Whether the associated condition the title names is documented; the “with” convention presumes some links, and a provider statement that the conditions are unrelated defeats it (Guidelines I.A.15).
The conditions the Use Additional Code note names
Reported with this code when documented; a conditional instruction (“if applicable”, “if known”) applies only when the record supports it.
Diabetes type or cause, each complication, and medication use
The type is documented, not inferred from medication (Guidelines I.C.4.a.3); each documented complication takes its own combination code.

Official instructions as workflow

  • Excludes1 — check before selecting E11.0(8 notes)

    Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with E11.0: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

    CompareE08, E09, O24.4, P70.2, E13, E10

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

  • Use Additional Code — after identifying E11.0(5 notes)

    Coding workflow: Check whether the documentation supports the additional code(s) the note names, and report them with E11.0 when it does. Where the instruction is conditional (“if applicable”, “if known”), it applies only when the record documents the condition.

    ReviewZ79.85, Z79.4, Z79.84

    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 E11.0 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).

ReviewE08, E09, O24.4, P70.2, E13, E10

Documentation: Only one of the components this code’s title joins is documented.

Coding question: Is E11.0 supported?

Path: Review the code for the documented component on its own.

Reason: A combination code is assigned only when it fully identifies the documented conditions; otherwise the documented component takes its own code (Guidelines I.B.9).

Documentation: A condition the Use Additional Code note names is documented.

Coding question: Is a second code reported with E11.0?

Path: Review the Use Additional Code note and the code it names.

Reason: The additional code is reported when the record documents the condition; a conditional instruction applies only when its condition is met (Guidelines I.A.13).

ReviewZ79.85, Z79.4, Z79.84

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

Type 2 diabetes mellitus with hyperosmolarity is a non-billable ICD-10-CM category code (E11.0). 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.

Verify Before Coding

  • Not billable as written — a more specific code is required: E11.00, E11.01.

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 E11.0 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 21 Excludes1 notes across 8 chapters: E08 — Diabetes mellitus due to underlying condition (via E11.-), E09 — Drug or chemical induced diabetes mellitus (via E11.-), E10 — Type 1 diabetes mellitus (via E11.-), E74 — Other disorders of carbohydrate metabolism (via E11.-), G54.5 — Neuralgic amyotrophy (via E11.-), G59 — Mononeuropathy in diseases classified elsewhere (via E11.-), G63 — Polyneuropathy in diseases classified elsewhere (via E11.-), G99.0 — Autonomic neuropathy in diseases classified elsewhere (via E11.-), H20.0 — Acute and subacute iridocyclitis (via E11.-), I73.8 — Other specified peripheral vascular diseases (via E11.-), I79.8 — Other disorders of arteries, arterioles and capillaries in diseases classified elsewhere (via E11.-), L92.1 — Necrobiosis lipoidica, not elsewhere classified (via E11.-), L99 — Other disorders of skin and subcutaneous tissue in diseases classified elsewhere (via E11.-), M14 — Arthropathies in other diseases classified elsewhere (via E11.-), M14.6 — Charcôt's joint (via E11.-), M90 — Osteopathies in diseases classified elsewhere (via E11.-), N08 — Glomerular disorders in diseases classified elsewhere (via E11.-), N16 — Renal tubulo-interstitial disorders in diseases classified elsewhere (via E11.-), N76.82 — Fournier disease of vagina and vulva (via E11.-), R40 — Somnolence, stupor and coma (via E11.-), +1 more.

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Referenced by 2 Excludes2 notes across 2 chapters: H35 — Other retinal disorders (via E11.-), I96 — Gangrene, not elsewhere classified (via E11.-).

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

Referenced by 1 Code First instruction: D84.81 — Immunodeficiency due to conditions classified elsewhere (via E11.-).

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 1 Code Also instruction: N76.82 — Fournier disease of vagina and vulva (via E11.-).

These codes suggest coding this condition alongside when both are present.

Contextual Map

Every relationship of E11.0 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 E11.0 with these 12 related codes in Claim Check

Hierarchy

Referenced by Excludes1 notes (21)

Referenced by Excludes2 notes

  • H35 — Other retinal disorders[Excludes2](via E11.-): “diabetic retinal disorders (E08.311-E08.359, E09.311-E09.359, E10.311-E10.359, E11.311-E11.359, E13.311-E13.359)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • I96 — Gangrene, not elsewhere classified[Excludes2](via E11.-): “gangrene in diabetes mellitus (E08-E13 with .52)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Referenced by Code First instructions

Referenced by Code Also instructions

Nearest codes (40)

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 E11.0 be billed directly?

No. E11.0 (Type 2 diabetes mellitus with hyperosmolarity) 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
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 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

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. "E11.0 — Type 2 diabetes mellitus with hyperosmolarity." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/e11.0-type-2-diabetes-mellitus-with-hyperosmolarity

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Type 2 diabetes mellitus with hyperosmolarity

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 E11.0 in its code family, with their registry titles.

View all codes in the E11 family