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E10.621 vs L89.216

E10.621 (Type 1 diabetes mellitus with foot ulcer) compared with L89.216 (Pressure-induced deep tissue damage of right hip), from the official CMS tabular data.

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

Summary

These codes can be reported together when both conditions are documented, because L89.216 lists E10.621 under Excludes2, which marks them as distinct conditions.

Official rule
What is different?

The conditions named and chapter.E10.621 is “Type 1 diabetes mellitus with foot ulcer”; L89.216 is “Pressure-induced deep tissue damage of right hip”. E10.621 sits in E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89); L89.216 in L00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99).

Registry fact

Can these codes be reported together?

Yes, when both are documented.L89.216 lists E10.621 under Excludes2: “diabetic ulcers (E08.621, E08.622, E09.621, E09.622, E10.621, E10.622, E11.621, E11.622, E13.621, E13.622)”. Excludes2 marks distinct conditions that may both be reported when both are documented.

Official ruleGuide: Excludes1 vs Excludes2

Is there an Excludes1 relationship?

None.Neither entry carries an Excludes1 note that names the other code. E10.621 carries 9 Excludes1 notes covering other codes; the side-by-side table quotes them.

Official rule

Is there an Excludes2 relationship?

Yes.L89.216’s tabular entry: “diabetic ulcers (E08.621, E08.622, E09.621, E09.622, E10.621, E10.622, E11.621, E11.622, E13.621, E13.622)”. The note covers E10.621.

Official ruleGuide: Excludes1 vs Excludes2

Is one more specific?

Not comparable.The codes sit in different categories; specificity is only comparable within one category.

Is one a parent or header code?

No.Both are billable codes, and neither contains the other.

Registry fact

Are there sequencing instructions?

None.Neither entry carries a Code First or Use Additional Code note that names the other.

Official rule

Are there other coding relationships?

None found.No laterality, encounter-phase, Table of Neoplasms, Table of Drugs and Chemicals, or history-versus-active-disease relationship links these codes.

MedCoder-derived

Official rule: a tabular instructional note or a section of the ICD-10-CM Official Guidelines, quoted as published. Registry fact: the codes’ own published attributes (titles, billable status, position in the hierarchy, code set). MedCoder-derived: a reading MedCoder computes from those facts; it is not itself a rule. How to read the labels

Can these codes be reported together?

Informational

Excludes2 relationship

L89.216
Pressure-induced deep tissue damage of right hip
↔
E10.621
Type 1 diabetes mellitus with foot ulcer

What we found

Yes, when both are documented.L89.216 carries an Excludes2 note covering E10.621: “diabetic ulcers (E08.621, E08.622, E09.621, E09.622, E10.621, E10.622, E11.621, E11.622, E13.621, E13.622)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

What to review

Report both only when the documentation supports both conditions; otherwise report the one documented.

Guide: Excludes1 vs Excludes2Check these on a claim

Why it matters

An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.

Source / rule

CMS ICD-10-CM tabular instructional notes

Official guidance behind these answers

  • Section I.A.12.b — Excludes2 · applies to: Excludes2

    A type 2 Excludes note represents “Not included here.” An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

    ICD-10-CM Official Guidelines FY2027

Quoted from the ICD-10-CM Official Guidelines for Coding and Reporting in effect for the release shown. The tabular notes above are the code-level instruction; these sections are the convention that says how such a note is applied. Source document (CMS PDF) · Release and checksum

Side by side

Similar descriptions do not make codes interchangeable. The documentation and the official instructions decide which code applies.

Official descriptionDiffers
E10.621

Type 1 diabetes mellitus with foot ulcer

L89.216

Pressure-induced deep tissue damage of right hip

StatusSame for both
Billable
Excludes1Differs
E10.621
  • diabetes mellitus due to underlying condition (E08.-)
  • drug or chemical induced diabetes mellitus (E09.-)
  • gestational diabetes (O24.4-)
  • hyperglycemia NOS (R73.9)
  • neonatal diabetes mellitus (P70.2)
  • postpancreatectomy diabetes mellitus (E13.-)
  • postprocedural diabetes mellitus (E13.-)
  • secondary diabetes mellitus NEC (E13.-)
  • type 2 diabetes mellitus (E11.-)
L89.216

None at this code

Excludes2Differs
E10.621

None at this code

L89.216
  • decubitus (trophic) ulcer of cervix (uteri) (N86)
  • diabetic ulcers (E08.621, E08.622, E09.621, E09.622, E10.621, E10.622, E11.621, E11.622, E13.621, E13.622)
  • non-pressure chronic ulcer of skin (L97.-)
  • skin infections (L00-L08)
  • varicose ulcer (I83.0, I83.2)
Code firstDiffers
E10.621

None at this code

L89.216
  • any associated gangrene (I96)
Use additional codeDiffers
E10.621
  • code to identify site of ulcer (L97.4-, L97.5-)
L89.216

None at this code

CategoryDiffers
E10.621

E10 Type 1 diabetes mellitus

L89.216

L89 Pressure ulcer

ChapterDiffers
E10.621

E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89)

L89.216

L00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99)

IncludesDiffers
E10.621
  • brittle diabetes (mellitus)
  • diabetes (mellitus) due to autoimmune process
  • diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction
  • idiopathic diabetes (mellitus)
L89.216
  • bed sore
  • decubitus ulcer
  • plaster ulcer
  • pressure area

No Code also and 7th character note at either code.

Notes are the code’s own tabular entry, quoted as published. A note that names the other code is the one the verdict above rests on. In a row that differs, notes every code shares are dimmed.

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Derived from the official CMS ICD-10-CM tabular data (FY2027). A coding-rule comparison, not billing advice: payer-specific edits and medical-necessity policy are outside its scope. All data sources