S55

Non-Billable
ChapterS00–T88
Rankcategory
Official Description

Injury of blood vessels at forearm level

Metadata & Insights
  • 2026 ICD-10-CM Edition - Effective October 1, 2025.
  • Non-billable category (requires more specific sub-code).
  • Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88).

CH19 Parent Instructions

Excludes2(Not included here)
Use Additional Code
  • code to identify any retained foreign body, if applicable (Z18.-)

S50-S59 Parent Instructions

Excludes2(Not included here)

Instructional Notes

Excludes2(Not included here)
  • injury of blood vessels at wrist and hand level (S65.-)
  • injury of brachial vessels (S45.1-S45.2)
Code Also
  • any associated open wound (S51.-)

Clinical Hierarchy

CH19Injury, poisoning and certain other consequences of external causes (S00-T88)
S50-S59Injuries to the elbow and forearm (S50-S59)
S55Injury of blood vessels at forearm level
S55.0Injury of ulnar artery at forearm level
S55.1Injury of radial artery at forearm level
S55.2Injury of vein at forearm level
S55.8Injury of other blood vessels at forearm level
S55.9Injury of unspecified blood vessel at forearm level

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to S55:

blockS50-S59
Injuries to the elbow and forearm (S50-S59)
View context instructions
chapterCH19
Injury, poisoning and certain other consequences of external causes (S00-T88)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to S55. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

15 raw paths
Injury15 unique routes
blood vessel NEC(15 variants)
forearmS55(9 variants)
specified(4 variants)
site NECS55(3 variants)
specified type NECS55
veinS55(3 variants)
specified type NECS55
specified type NECS55
specified type NECS55

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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