S45.899A – Other specified injury of other specified blood vessels at shoulder and upper arm level, unspecified arm, initial encounter

ICD-10-CM 2027 diagnosis code · Injuries to the shoulder and upper arm

Billable code

ICD-10-CM code S45.899A

Code: S45.899A (claims format: S45899A)
Description: Other specified injury of other specified blood vessels at shoulder and upper arm level, unspecified arm, initial encounter
Short description: Inj oth blood vessels at shldr/up arm, unsp arm, init
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: S45 › S45.8 › S45.89 › S45.899

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care.

Character	Meaning
`A`	initial encounter
`D`	subsequent encounter
`S`	sequela

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

S45 – Injury of blood vessels at shoulder and upper arm level

Excludes2 (not included here):

injury of subclavian artery (S25.1)
injury of subclavian vein (S25.3)

Code also:

any associated open wound (S41.-)

7th character note:

The appropriate 7th character is to be added to each code from category S45

Block S40-S49

Includes:

injuries of axilla
injuries of scapular region

Excludes2 (not included here):

burns and corrosions (T20-T32)
frostbite (T33-T34)
injuries of elbow (S50-S59)
insect bite or sting, venomous (T63.4)

Related codes in S45.899

Frequently asked questions

What is ICD-10 code S45.899A?

S45.899A is the ICD-10-CM code for other specified injury of other specified blood vessels at shoulder and upper arm level, unspecified arm, initial encounter, in the block S40-S49 (Injuries to the shoulder and upper arm).

Is S45.899A a billable code?

Yes. S45.899A is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does S45.899A belong to?

It belongs to category S45 – Injury of blood vessels at shoulder and upper arm level.

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.