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U.S. ICD-10-CM · FY 2027

S42.123K ICD-10-CM Code: Displaced fracture of acromial process, unspecified shoulder, subsequent encounter for fracture with nonunion

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

S42.123K

Displaced fracture of acromial process, unspecified shoulder, subsequent encounter for fracture with nonunion

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where S42.123K sits

  1. 1

    Chapter 19

    Injury, poisoning and certain other consequences of external causes (S00-T88)

  2. 2

    Section

    Injuries to the shoulder and upper arm (S40-S49)

  3. 3

    Category S42

    Fracture of shoulder and upper arm

  4. 4

    Subcategory S42.123

    Displaced fracture of acromial process, unspecified shoulder

  5. 5

    Code S42.123K

    Displaced fracture of acromial process, unspecified shoulder, subsequent encounter for fracture with nonunion

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for S42.123K.

Code first

No “code first” instruction is listed for S42.123K.

Use additional code

No “use additional code” instruction is listed for S42.123K.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for S42.123K.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for S42.123K.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code S42.123K mean?

S42.123K is the FY 2027 U.S. ICD-10-CM code for “Displaced fracture of acromial process, unspecified shoulder, subsequent encounter for fracture with nonunion.”

Is S42.123K a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, S42.123K has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is S42.123K located in ICD-10-CM?

S42.123K is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Injuries to the shoulder and upper arm (S40-S49) (S40–S49), under category S42, Fracture of shoulder and upper arm and subcategory S42.123, Displaced fracture of acromial process, unspecified shoulder.

What coding notes are listed for S42.123K?

No inclusion terms are listed for S42.123K in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

Keep exploring

Related S42.123 codes

S42.123A

Displaced fracture of acromial process, unspecified shoulder, initial encounter for closed fracture

S42.123B

Displaced fracture of acromial process, unspecified shoulder, initial encounter for open fracture

S42.123D

Displaced fracture of acromial process, unspecified shoulder, subsequent encounter for fracture with routine healing

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