S65.399A Other specified injury of deep palmar arch of unspecified hand, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S65.399 with 7th character A (initial encounter).

Applies from S65 Injury of blood vessels at wrist and hand level

Code also

• any associated open wound (S61.-)

7th character note

• The appropriate 7th character is to be added to each code from category S65

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Medicare Code Edits (MCE v43.1 (April 2026))

• Unspecified code (laterality): Unspecified codes for which a more specific code identifying laterality (right, left, bilateral) exists within the same code family.

Code annotations containing back-references to S65.399A

Back-references to S65

• Type 2 Excludes: S55 Injury of blood vessels at forearm level ("injury of blood vessels at wrist and hand level (S65.-)")

Nearby codes

• S65.392 Other specified injury of deep palmar arch of left hand
• S65.392A Other specified injury of deep palmar arch of left hand, initial encounter
• S65.392D Other specified injury of deep palmar arch of left hand, subsequent encounter
• S65.392S Other specified injury of deep palmar arch of left hand, sequela
• S65.399 Other specified injury of deep palmar arch of unspecified hand
• S65.399A Other specified injury of deep palmar arch of unspecified hand, initial encounter (this code)
• S65.399D Other specified injury of deep palmar arch of unspecified hand, subsequent encounter
• S65.399S Other specified injury of deep palmar arch of unspecified hand, sequela
• S65.4 Injury of blood vessel of thumb
• S65.40 Unspecified injury of blood vessel of thumb
• S65.401 Unspecified injury of blood vessel of right thumb