Billable / Specific Code
ICD-10-CM S31.109 is the diagnosis code for Unspecified open wound of abdominal wall, unspecified quadrant 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 billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where S31.109 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, S31.109 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
S31.109 is the ICD-10-CM diagnosis code for "Unspecified open wound of abdominal wall, unspecified quadrant without penetration into peritoneal cavity". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of S31.109 is S31.10 ("Unspecified open wound of abdominal wall without penetration into peritoneal cavity"). S31.109 provides a more specific classification within this category.
S31.109 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.
Use S31.109 when the patients documented diagnosis matches "Unspecified open wound of abdominal wall, unspecified quadrant 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.
The ICD-10-CM code for Unspecified open wound of abdominal wall, unspecified quadrant without penetration into peritoneal cavity is S31.109.
Yes, S31.109 can be used as a primary diagnosis code since it is billable and specific.
S31.109 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, S31.109 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.