ICD-10-CM 2027 diagnosis code
S31.61ASLaceration without foreign body of abdominal wall, unspecified flank with penetration into peritoneal cavity, sequela
S31.61AS is a valid, billable ICD-10-CM code for laceration without foreign body of abdominal wall, unspecified flank with penetration into peritoneal cavity, sequela. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Lac w/o fb ofbd wall, unsp flank with penet perit cav, sqla
Code last changed in FY2026 (effective October 1, 2025). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About S31.61AS
S31.61AS is the ICD-10-CM diagnosis code for laceration without foreign body of abdominal wall, unspecified flank with penetration into peritoneal cavity, sequela. It belongs to category S31 (open wound of abdomen, lower back, pelvis and external genitals), block S30-S39 (injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
The 7th character "S" means sequela: use it for complications or conditions that arise as a direct result of the original condition.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 604 (Trauma to the Skin, Subcutaneous Tissue and Breast with MCC, relative weight 1.453) and DRG 605 (Trauma to the Skin, Subcutaneous Tissue and Breast without MCC, relative weight 0.9079), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.
It was added in FY2026, effective October 1, 2025.
7th character
Ssequela
CC/MCC status for this injury by encounter: MCC for A; Neither CC nor MCC for D, S.
Other encounter types for S31.61A:
Notes that apply from higher levels
Instructions written at a parent level also apply to S31.61AS.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 09 · Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2026 (effective 10/1/2025): Added
- No changes since FY2026.
Common questions about S31.61AS
Is S31.61AS billable?
- Yes. S31.61AS is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
What does the "S" at the end of S31.61AS mean?
- It is the 7th character for sequela. Per the official guidelines, use it for complications or conditions that arise as a direct result of the original condition.
Can S31.61AS be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict S31.61AS as a principal diagnosis.
Is S31.61AS a CC or MCC?
- No. S31.61AS is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does S31.61AS group to?
- S31.61AS is used in the MS-DRG v44.0 logic for MS-DRG 604 (Trauma to the Skin, Subcutaneous Tissue and Breast with MCC) and MS-DRG 605 (Trauma to the Skin, Subcutaneous Tissue and Breast without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.