ICD-10-CM · FY 2026 APRIL UPDATE

S31.1

Open wound of abdominal wall without penetration into peritoneal cavity

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027

SourceCMS ICD-10-CM order file

ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODE	DESCRIPTION	TYPE
S31.10	Unspecified open wound of abdominal wall without penetration into peritoneal cavity	Category
S31.100	Unspecified open wound of abdominal wall, right upper quadrant without penetration into peritoneal cavity	Category
S31.100A	Unspecified open wound of abdominal wall, right upper quadrant without penetration into peritoneal cavity, initial encounter	Billable
S31.100D	Unspecified open wound of abdominal wall, right upper quadrant without penetration into peritoneal cavity, subsequent encounter	Billable
S31.100S	Unspecified open wound of abdominal wall, right upper quadrant without penetration into peritoneal cavity, sequela	Billable
S31.101	Unspecified open wound of abdominal wall, left upper quadrant without penetration into peritoneal cavity	Category
S31.101A	Unspecified open wound of abdominal wall, left upper quadrant without penetration into peritoneal cavity, initial encounter	Billable
S31.101D	Unspecified open wound of abdominal wall, left upper quadrant without penetration into peritoneal cavity, subsequent encounter	Billable
S31.101S	Unspecified open wound of abdominal wall, left upper quadrant without penetration into peritoneal cavity, sequela	Billable
S31.102	Unspecified open wound of abdominal wall, epigastric region without penetration into peritoneal cavity	Category
S31.102A	Unspecified open wound of abdominal wall, epigastric region without penetration into peritoneal cavity, initial encounter	Billable
S31.102D	Unspecified open wound of abdominal wall, epigastric region without penetration into peritoneal cavity, subsequent encounter	Billable
S31.102S	Unspecified open wound of abdominal wall, epigastric region without penetration into peritoneal cavity, sequela	Billable
S31.103	Unspecified open wound of abdominal wall, right lower quadrant without penetration into peritoneal cavity	Category
S31.103A	Unspecified open wound of abdominal wall, right lower quadrant without penetration into peritoneal cavity, initial encounter	Billable
S31.103D	Unspecified open wound of abdominal wall, right lower quadrant without penetration into peritoneal cavity, subsequent encounter	Billable
S31.103S	Unspecified open wound of abdominal wall, right lower quadrant without penetration into peritoneal cavity, sequela	Billable
S31.104	Unspecified open wound of abdominal wall, left lower quadrant without penetration into peritoneal cavity	Category
S31.104A	Unspecified open wound of abdominal wall, left lower quadrant without penetration into peritoneal cavity, initial encounter	Billable
S31.104D	Unspecified open wound of abdominal wall, left lower quadrant without penetration into peritoneal cavity, subsequent encounter	Billable
S31.104S	Unspecified open wound of abdominal wall, left lower quadrant without penetration into peritoneal cavity, sequela	Billable
S31.105	Unspecified open wound of abdominal wall, periumbilic region without penetration into peritoneal cavity	Category
S31.105A	Unspecified open wound of abdominal wall, periumbilic region without penetration into peritoneal cavity, initial encounter	Billable
S31.105D	Unspecified open wound of abdominal wall, periumbilic region without penetration into peritoneal cavity, subsequent encounter	Billable
S31.105S	Unspecified open wound of abdominal wall, periumbilic region without penetration into peritoneal cavity, sequela	Billable
S31.106	Unspecified open wound of abdominal wall, right flank without penetration into peritoneal cavity	Category
S31.106A	Unspecified open wound of abdominal wall, right flank without penetration into peritoneal cavity, initial encounter	Billable
S31.106D	Unspecified open wound of abdominal wall, right flank without penetration into peritoneal cavity, subsequent encounter	Billable
S31.106S	Unspecified open wound of abdominal wall, right flank without penetration into peritoneal cavity, sequela	Billable
S31.107	Unspecified open wound of abdominal wall, left flank without penetration into peritoneal cavity	Category

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.