S42.399B
S42.399B: Other fracture of shaft of unspecified humerus, initial encounter for open fracture
Billable / specific codeICD-10-CM
S42.399B is a billable, specific ICD-10-CM code for other fracture of shaft of unspecified humerus, initial encounter for open fracture. It is valid for submission on a claim.
Check S42.399B with the rest of the claim: free scrubber7th character "B": initial encounter for open fracture
The appropriate 7th character is to be added to all codes from category S42
- 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
Excludes1 inherited from the categories above S42.399B
A category’s note binds every code beneath it.
Excludes2 inherited from the categories above S42.399B
Not part of this code, but both may be coded when both are present.
Written on S42.3: Fracture of shaft of humerus
Other codes that can never be billed with S42.399B
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under S42.399
- S42.399AOther fracture of shaft of unspecified humerus, initial encounter for closed fracture
- S42.399DOther fracture of shaft of unspecified humerus, subsequent encounter for fracture with routine healing
- S42.399GOther fracture of shaft of unspecified humerus, subsequent encounter for fracture with delayed healing
- S42.399KOther fracture of shaft of unspecified humerus, subsequent encounter for fracture with nonunion
- S42.399POther fracture of shaft of unspecified humerus, subsequent encounter for fracture with malunion
- S42.399SOther fracture of shaft of unspecified humerus, sequela