ICD10Check
CheckerBrowseOpen

S31.644

⚠ Non-billable (Header)

Puncture wound with foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity

Injury, poisoning and certain other consequences of external causes (S00-T88)

⚠️ This is a category header code — not billable. Use a more specific child code below.

Check This Code

❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

S31
  • • traumatic amputation of part of abdomen, lower back and pelvis (S38.2-, S38.3)

⚠️ Excludes2

inherited

Rules inherited from parent codes.

S31
  • • open wound of hip (S71.00-S71.02)
  • • open fracture of pelvis (S32.1--S32.9 with 7th character B)

Child Codes (3)

S31.644APuncture wound with foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity, initial encounterS31.644DPuncture wound with foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity, subsequent encounterS31.644SPuncture wound with foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity, sequela

Clinical Description

ICD-10-CM code S31.644 represents puncture wound with foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 7-character code at the 6th level of specificity. There are 3 more specific child codes under S31.644. Coders should note that S31.644 has 1 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code S31.644?

ICD-10-CM code S31.644 is "Puncture wound with foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is S31.644 a billable ICD-10 code?

No, S31.644 is a non-billable header code. A more specific child code must be used for billing.

What codes are excluded with S31.644?

S31.644 has 1 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Can S31.644 be coded with other codes?

S31.644 has 2 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.

Related Codes in S31.64

Other codes in the same category that may be relevant for differential coding:

S31.640Puncture wound with foreign body of abdominal wall, right upper quadrant with penetration into peritoneal cavityS31.641Puncture wound with foreign body of abdominal wall, left upper quadrant with penetration into peritoneal cavityS31.642Puncture wound with foreign body of abdominal wall, epigastric region with penetration into peritoneal cavityS31.643Puncture wound with foreign body of abdominal wall, right lower quadrant with penetration into peritoneal cavityS31.645Puncture wound with foreign body of abdominal wall, periumbilic region with penetration into peritoneal cavityS31.646Puncture wound of abdominal wall with foreign body, right flank with penetration into peritoneal cavityS31.647Puncture wound of abdominal wall with foreign body, left flank with penetration into peritoneal cavityS31.649Puncture wound with foreign body of abdominal wall, unspecified quadrant with penetration into peritoneal cavityS31.64APuncture wound of abdominal wall with foreign body, unspecified flank with penetration into peritoneal cavity

🧪 Validate Combinations

Add S31.644 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeS31.644
BillableNo — Header code
ParentS31.64
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes11 rule(s)
Excludes22 note(s)
Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)