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S53.3 vs S53.409A

S53.3 (Traumatic rupture of ulnar collateral ligament) compared with S53.409A (Unspecified sprain of unspecified elbow, initial encounter), 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 S53.409A lists S53.3 under Excludes2, which marks them as distinct conditions.

Official rule
What is different?

The conditions named and billing status.S53.3 is “Traumatic rupture of ulnar collateral ligament”; S53.409A is “Unspecified sprain of unspecified elbow, initial encounter”. S53.3 is a non-billable header; S53.409A is billable.

Registry fact

Can these codes be reported together?

Yes, when both are documented.S53.409A lists S53.3 under Excludes2: “traumatic rupture of ulnar collateral ligament (S53.3-)”. Excludes2 marks distinct conditions that may both be reported when both are documented.

Official ruleGuide: Excludes1 vs Excludes2

Is there an Excludes2 relationship?

Yes.S53.409A’s tabular entry: “traumatic rupture of ulnar collateral ligament (S53.3-)”. The note covers S53.3.

Official ruleGuide: Excludes1 vs Excludes2

Is one more specific?

Yes.S53.3’s title names the condition; S53.409A’s title is the unspecified form (“Unspecified sprain of unspecified elbow, initial encounter”).

MedCoder-derivedGuide: Other vs unspecified (NEC vs NOS)

Is one a parent or header code?

One is a header.S53.3 is a non-billable header, but S53.409A is not one of its subdivisions.

Registry fact

Nothing found in 3 other checks
Is there an Excludes1 relationship?

None.Neither entry carries an Excludes1 note that names the other code. S53.3 carries 1 Excludes1 note covering other codes; the side-by-side table quotes them.

Official rule

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

S53.409A
Unspecified sprain of unspecified elbow, initial encounter
↔
S53.3
Traumatic rupture of ulnar collateral ligament

What we found

Yes, when both are documented.S53.409A carries an Excludes2 note covering S53.3: “traumatic rupture of ulnar collateral ligament (S53.3-)”

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
S53.3

Traumatic rupture of ulnar collateral ligament

S53.409A

Unspecified sprain of unspecified elbow, initial encounter

StatusDiffers
S53.3
Non-billable header

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

Report instead: S53.30XA, S53.30XD, S53.30XS, S53.31XA, S53.31XD

S53.409A
Billable
Excludes1Differs
S53.3
  • sprain of ulnar collateral ligament (S53.44-)
S53.409A

None at this code

Excludes2Differs
Only at S53.3

No note of its own beyond the shared notes

Only at S53.409A
  • traumatic rupture of radial collateral ligament (S53.2-)
  • traumatic rupture of ulnar collateral ligament (S53.3-)
Shared by both codes (5 notes)
  • strain of muscle, fascia and tendon at forearm level (S56.-)
  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • injuries of wrist and hand (S60-S69)
  • insect bite or sting, venomous (T63.4)
Code alsoSame for both
  • any associated open wound
CategorySame for both

S53 Dislocation and sprain of joints and ligaments of elbow

ChapterSame for both

S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)

IncludesDiffers
Only at S53.3

No note of its own beyond the shared notes

Only at S53.409A
  • Sprain of elbow NOS
Shared by both codes (7 notes)
  • avulsion of joint or ligament of elbow
  • laceration of cartilage, joint or ligament of elbow
  • sprain of cartilage, joint or ligament of elbow
  • traumatic hemarthrosis of joint or ligament of elbow
  • traumatic rupture of joint or ligament of elbow
  • traumatic subluxation of joint or ligament of elbow
  • traumatic tear of joint or ligament of elbow
7th characterSame for both
  • The appropriate 7th character is to be added to each code from category S53

No Code first and Use additional code 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