S31.1
Non-Billable

Open wound of abdominal wall without penetration into peritoneal cavity

Non-Billable / Non-Specific Code

What is Open wound of abdominal wall without penetration into peritoneal cavity?

ICD-10-CM S31.1 is the diagnosis code for Open wound of abdominal wall without penetration into peritoneal cavity. This code falls under the section "Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals" within Chapter 19 — Injury, poisoning and certain other consequences of external causes (S00-T88). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

💡 Inclusions
â„šī¸ Excludes2

Coding Guidelines for S31.1

✅ This Code Includes

  • Open wound of abdominal wall NOS

â„šī¸ Type 2 Excludes (Code separately if applicable)

The following conditions are not included in S31.1. If the patient has both, code each condition separately:

  • open wound of abdominal wall with penetration into peritoneal cavity (S31.6-)

ICD-10-CM Code Hierarchy

Understanding where S31.1 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 6 entries
S31.10Unspecified open wound of abdominal wall without penetration into peritoneal cavityNon-BillableS31.100Unspecified open wound of abdominal wall, right upper quadrant without penetration into peritoneal cavityBillableS31.101Unspecified open wound of abdominal wall, left upper quadrant without penetration into peritoneal cavityBillableS31.102Unspecified open wound of abdominal wall, epigastric region without penetration into peritoneal cavityBillableS31.103Unspecified open wound of abdominal wall, right lower quadrant without penetration into peritoneal cavityBillableS31.104Unspecified open wound of abdominal wall, left lower quadrant without penetration into peritoneal cavityBillableS31.105Unspecified open wound of abdominal wall, periumbilic region without penetration into peritoneal cavityBillableS31.106Unspecified open wound of abdominal wall, right flank without penetration into peritoneal cavityBillableS31.107Unspecified open wound of abdominal wall, left flank without penetration into peritoneal cavityBillableS31.109Unspecified open wound of abdominal wall, unspecified quadrant without penetration into peritoneal cavityBillableS31.10AUnspecified open wound of abdominal wall, unspecified flank without penetration into peritoneal cavityBillableS31.11Laceration without foreign body of abdominal wall without penetration into peritoneal cavityNon-BillableS31.110Laceration without foreign body of abdominal wall, right upper quadrant without penetration into peritoneal cavityBillableS31.111Laceration without foreign body of abdominal wall, left upper quadrant without penetration into peritoneal cavityBillableS31.112Laceration without foreign body of abdominal wall, epigastric region without penetration into peritoneal cavityBillableS31.113Laceration without foreign body of abdominal wall, right lower quadrant without penetration into peritoneal cavityBillableS31.114Laceration without foreign body of abdominal wall, left lower quadrant without penetration into peritoneal cavityBillableS31.115Laceration without foreign body of abdominal wall, periumbilic region without penetration into peritoneal cavityBillableS31.116Laceration without foreign body of abdominal wall, right flank without penetration into peritoneal cavityBillableS31.117Laceration without foreign body of abdominal wall, left flank without penetration into peritoneal cavityBillableS31.119Laceration without foreign body of abdominal wall, unspecified quadrant without penetration into peritoneal cavityBillableS31.11ALaceration without foreign body of abdominal wall, unspecified flank without penetration into peritoneal cavityBillableS31.12Laceration with foreign body of abdominal wall without penetration into peritoneal cavityNon-BillableS31.120Laceration of abdominal wall with foreign body, right upper quadrant without penetration into peritoneal cavityBillableS31.121Laceration of abdominal wall with foreign body, left upper quadrant without penetration into peritoneal cavityBillableS31.122Laceration of abdominal wall with foreign body, epigastric region without penetration into peritoneal cavityBillableS31.123Laceration of abdominal wall with foreign body, right lower quadrant without penetration into peritoneal cavityBillableS31.124Laceration of abdominal wall with foreign body, left lower quadrant without penetration into peritoneal cavityBillableS31.125Laceration of abdominal wall with foreign body, periumbilic region without penetration into peritoneal cavityBillableS31.126Laceration with foreign body of abdominal wall, right flank without penetration into peritoneal cavityBillableS31.127Laceration with foreign body of abdominal wall, left flank without penetration into peritoneal cavityBillableS31.129Laceration of abdominal wall with foreign body, unspecified quadrant without penetration into peritoneal cavityBillableS31.12ALaceration with foreign body of abdominal wall unspecified flank without penetration into peritoneal cavityBillableS31.13Puncture wound of abdominal wall without foreign body without penetration into peritoneal cavityNon-BillableS31.130Puncture wound of abdominal wall without foreign body, right upper quadrant without penetration into peritoneal cavityBillableS31.131Puncture wound of abdominal wall without foreign body, left upper quadrant without penetration into peritoneal cavityBillableS31.132Puncture wound of abdominal wall without foreign body, epigastric region without penetration into peritoneal cavityBillableS31.133Puncture wound of abdominal wall without foreign body, right lower quadrant without penetration into peritoneal cavityBillableS31.134Puncture wound of abdominal wall without foreign body, left lower quadrant without penetration into peritoneal cavityBillableS31.135Puncture wound of abdominal wall without foreign body, periumbilic region without penetration into peritoneal cavityBillableS31.136Puncture wound of abdominal wall without foreign body, right flank without penetration into peritoneal cavityBillableS31.137Puncture wound of abdominal wall without foreign body, left flank without penetration into peritoneal cavityBillableS31.139Puncture wound of abdominal wall without foreign body, unspecified quadrant without penetration into peritoneal cavityBillableS31.13APuncture wound of abdominal wall without foreign body, unspecified flank without penetration into peritoneal cavityBillableS31.14Puncture wound of abdominal wall with foreign body without penetration into peritoneal cavityNon-BillableS31.140Puncture wound of abdominal wall with foreign body, right upper quadrant without penetration into peritoneal cavityBillableS31.141Puncture wound of abdominal wall with foreign body, left upper quadrant without penetration into peritoneal cavityBillableS31.142Puncture wound of abdominal wall with foreign body, epigastric region without penetration into peritoneal cavityBillableS31.143Puncture wound of abdominal wall with foreign body, right lower quadrant without penetration into peritoneal cavityBillableS31.144Puncture wound of abdominal wall with foreign body, left lower quadrant without penetration into peritoneal cavityBillableS31.145Puncture wound of abdominal wall with foreign body, periumbilic region without penetration into peritoneal cavityBillableS31.146Puncture wound of abdominal wall with foreign body, right flank without penetration into peritoneal cavityBillableS31.147Puncture wound of abdominal wall with foreign body, left flank without penetration into peritoneal cavityBillableS31.149Puncture wound of abdominal wall with foreign body, unspecified quadrant without penetration into peritoneal cavityBillableS31.14APuncture wound of abdominal wall with foreign body, unspecified flank without penetration into peritoneal cavityBillableS31.15Open bite of abdominal wall without penetration into peritoneal cavityNon-BillableS31.150Open bite of abdominal wall, right upper quadrant without penetration into peritoneal cavityBillableS31.151Open bite of abdominal wall, left upper quadrant without penetration into peritoneal cavityBillableS31.152Open bite of abdominal wall, epigastric region without penetration into peritoneal cavityBillableS31.153Open bite of abdominal wall, right lower quadrant without penetration into peritoneal cavityBillableS31.154Open bite of abdominal wall, left lower quadrant without penetration into peritoneal cavityBillableS31.155Open bite of abdominal wall, periumbilic region without penetration into peritoneal cavityBillableS31.156Open bite of abdominal wall, right flank without penetration into peritoneal cavityBillableS31.157Open bite of abdominal wall, left flank without penetration into peritoneal cavityBillableS31.159Open bite of abdominal wall, unspecified quadrant without penetration into peritoneal cavityBillableS31.15AOpen bite of abdominal wall, unspecified flank without penetration into peritoneal cavityBillable
Related Codes

Frequently Asked Questions

Is S31.1 a billable ICD-10-CM code?

No, S31.1 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does S31.1 mean?

S31.1 is the ICD-10-CM diagnosis code for "Open wound of abdominal wall without penetration into peritoneal cavity". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of S31.1?

The parent code of S31.1 is S31 ("Open wound of abdomen, lower back, pelvis and external genitals"). S31.1 provides a more specific classification within this category.

What section is S31.1 in?

S31.1 is located in Section S30-S39 — "Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals" within Chapter 19 of the ICD-10-CM Tabular List.

What are the sub-codes of S31.1?

S31.1 has 6 sub-code(s) that provide more specific detail: S31.10, S31.11, S31.12, S31.13, S31.14 and more.

When should I use S31.1?

Use S31.1 when the patients documented diagnosis matches "Open wound of abdominal wall without penetration into peritoneal cavity" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Open wound of abdominal wall without penetration into peritoneal cavity?

The ICD-10-CM code for Open wound of abdominal wall without penetration into peritoneal cavity is S31.1.

Can S31.1 be used for primary diagnosis?

No, S31.1 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is S31.1 in?

S31.1 is in Chapter 19 of the ICD-10-CM Tabular List.

Is S31.1 valid for 2026?

Yes, S31.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousS31.051Open bite of lower back and pelvis with penetration into retroperitoneumNext →S31.10Unspecified open wound of abdominal wall without penetration into peritoneal cavity
Code Details
S31.1
Open wound of abdominal wall without penetration into peritoneal cavity
Non-Billable / Non-Specific Code
19 — Injury, poisoning and certain other consequences of external causes (S00-T88)
S30-S39 — Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals
2026 ICD-10-CM