ICD-10 code for Loin wound

The ICD-10-CM code for Loin wound is S31.109 (Unspecified open wound of abdominal wall, unspecified quadrant without penetration into peritoneal cavity).

Within S31.10, choose S31.109 (unspecified quadrant without penetration into peritoneal cavity) only when documentation doesn't support a more specific option: right upper quadrant without penetration into peritoneal cavity (S31.100), left upper quadrant without penetration into peritoneal cavity (S31.101), epigastric region without penetration into peritoneal cavity (S31.102), right lower quadrant without penetration into peritoneal cavity (S31.103), left lower quadrant without penetration into peritoneal cavity (S31.104), periumbilic region without penetration into peritoneal cavity (S31.105), right flank without penetration into peritoneal cavity (S31.106), left flank without penetration into peritoneal cavity (S31.107) and 1 more.

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.