S42.442K – Displaced fracture (avulsion) of medial epicondyle of left humerus, subsequent encounter for fracture with nonunion
ICD-10-CM 2027 diagnosis code · Injuries to the shoulder and upper arm
- Code
S42.442K(claims format:S42442K)- Description
- Displaced fracture (avulsion) of medial epicondyle of left humerus, subsequent encounter for fracture with nonunion
- Short description
- Disp fx of med epicondyl of l humer, subs for fx w nonunion
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
- Block
- S40-S49 Injuries to the shoulder and upper arm
- Parent codes
- S42 › S42.4 › S42.44 › S42.442
7th character values
Codes in this category need a 7th character to describe the encounter or episode of care.
| Character | Meaning |
|---|---|
A | initial encounter for closed fracture |
B | initial encounter for open fracture |
D | subsequent encounter for fracture with routine healing |
G | subsequent encounter for fracture with delayed healing |
K | subsequent encounter for fracture with nonunion |
P | subsequent encounter for fracture with malunion |
S | sequela |
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
S42 – Fracture of shoulder and upper arm
- traumatic amputation of shoulder and upper arm (S48.-)
- periprosthetic fracture around internal prosthetic shoulder joint (M97.3)
- A fracture not indicated as displaced or nondisplaced should be coded to displaced
- A fracture not indicated as open or closed should be coded to closed
- The appropriate 7th character is to be added to all codes from category S42
S42.4 – Fracture of lower end of humerus
- Fracture of distal end of humerus
Block S40-S49
- injuries of axilla
- injuries of scapular region
Related codes in S42.442
- S42.442A – Displaced fracture (avulsion) of medial epicondyle of left humerus, initial encounter for closed fractureBillable
- S42.442B – Displaced fracture (avulsion) of medial epicondyle of left humerus, initial encounter for open fractureBillable
- S42.442D – Displaced fracture (avulsion) of medial epicondyle of left humerus, subsequent encounter for fracture with routine healingBillable
- S42.442G – Displaced fracture (avulsion) of medial epicondyle of left humerus, subsequent encounter for fracture with delayed healingBillable
- S42.442P – Displaced fracture (avulsion) of medial epicondyle of left humerus, subsequent encounter for fracture with malunionBillable
- S42.442S – Displaced fracture (avulsion) of medial epicondyle of left humerus, sequelaBillable
Frequently asked questions
What is ICD-10 code S42.442K?
S42.442K is the ICD-10-CM code for displaced fracture (avulsion) of medial epicondyle of left humerus, subsequent encounter for fracture with nonunion, in the block S40-S49 (Injuries to the shoulder and upper arm).
Is S42.442K a billable code?
Yes. S42.442K is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does S42.442K belong to?
It belongs to category S42 – Fracture of shoulder and upper arm.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.