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I83.224 vs O22.0

I83.224 (Varicose veins of left lower extremity with both ulcer of heel and midfoot and inflammation) compared with O22.0 (Varicose veins of lower extremity in pregnancy), 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 I83.224 lists O22.0 under Excludes2, which marks them as distinct conditions.

Official rule
What is different?

Title wording, billing status and chapter.The titles share “Varicose veins of”; I83.224 says “left lower extremity with both ulcer of heel and midfoot and inflammation” where O22.0 says “lower extremity in pregnancy”. O22.0 is a non-billable header; I83.224 is billable. I83.224 sits in I00-I99 — Diseases of the Circulatory System (I00-I99); O22.0 in O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A).

Registry fact

Can these codes be reported together?

Yes, when both are documented.I83.224 lists O22.0 under Excludes2: “varicose veins complicating pregnancy (O22.0-)”. Excludes2 marks distinct conditions that may both be reported when both are documented.

Official ruleGuide: Excludes1 vs Excludes2

Is there an Excludes2 relationship?

Yes.I83.224’s tabular entry: “varicose veins complicating pregnancy (O22.0-)”. The note covers O22.0.

Official ruleGuide: Excludes1 vs Excludes2

Is one a parent or header code?

One is a header.O22.0 is a non-billable header, but I83.224 is not one of its subdivisions.

Registry fact

Nothing found in 3 other checks; 1 check does not apply
Is there an Excludes1 relationship?

None.Neither entry carries an Excludes1 note that names the other code. O22.0 carries 6 Excludes1 notes covering other codes; the side-by-side table quotes them.

Official rule

Is one more specific?

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

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

I83.224
Varicose veins of left lower extremity with both ulcer of heel and midfoot and inflammation
↔
O22.0
Varicose veins of lower extremity in pregnancy

What we found

Yes, when both are documented.I83.224 carries an Excludes2 note covering O22.0: “varicose veins complicating pregnancy (O22.0-)”

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
I83.224

Varicose veins of left lower extremity with both ulcer of heel and midfoot and inflammation

O22.0

Varicose veins of lower extremity in pregnancy

StatusDiffers
I83.224
Billable
O22.0
Non-billable header

A header is not reported on a claim; a code beneath it is.

Report instead: O22.00, O22.01, O22.02, O22.03

Excludes1Differs
I83.224

None at this code

O22.0
  • venous complications of:
  • abortion NOS (O03.9)
  • ectopic or molar pregnancy (O08.7)
  • failed attempted abortion (O07.35)
  • induced abortion (O04.85)
  • spontaneous abortion (O03.89)
Excludes2Differs
I83.224
  • varicose veins complicating pregnancy (O22.0-)
  • varicose veins complicating the puerperium (O87.4)
O22.0
  • obstetric pulmonary embolism (O88.-)
  • venous complications and hemorrhoids of childbirth and the puerperium (O87.-)
  • maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
  • maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)
Use additional codeDiffers
I83.224
  • code to identify severity of ulcer (L97.-)
O22.0

None at this code

CategoryDiffers
I83.224

I83 Varicose veins of lower extremities

O22.0

O22 Venous complications and hemorrhoids in pregnancy

ChapterDiffers
I83.224

I00-I99 — Diseases of the Circulatory System (I00-I99)

O22.0

O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A)

IncludesDiffers
I83.224
  • Varicose veins of left lower extremity with both ulcer of plantar surface of midfoot and inflammation
O22.0
  • Varicose veins NOS in pregnancy

No Code first, 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, each code’s own notes are listed under it, and the notes every code shares are listed once beneath them.

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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