S44.90XA Injury of unsp nerve at shldr/up arm, unsp arm, init

Instructional Notes:

S44.90XA
Description: Injury of unsp nerve at shldr/up arm, unsp arm, init
↓
S44.90
Description: Injury of unspecified nerve at shoulder and upper arm level, unspecified arm
↓
S44.9
Description: Injury of unspecified nerve at shoulder and upper arm level
↓
S44
Description: Injury of nerves at shoulder and upper arm level
Exclude2:
- injury of brachial plexus (S14.3-)
Code Also: ['any associated open wound (S41.-)']
↓
S40-S49
Description: Injuries to the shoulder and upper arm (S40-S49)
Exclude2:
- burns and corrosions (T20-T32)
- frostbite (T33-T34)
- injuries of elbow (S50-S59)
- insect bite or sting, venomous (T63.4)
Include:
- injuries of axilla
- injuries of scapular region
↓
S00-T88
Description: Injury, poisoning and certain other consequences of external causes
Exclude2:
- birth trauma (P10-P15)
- obstetric trauma (O70-O71)
Notes:
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
Use Additional Code:
- code to identify any retained foreign body, if applicable (Z18.-)