2026 ICD-10-CM Diagnosis Code S30.13XDContusion of flank (latus) region, subsequent encounter
S30.13XD is a billable ICD-10-CM diagnosis code for contusion of flank (latus) region, subsequent encounter. The 7th character D marks it as a subsequent encounter code, used during routine care in the healing or recovery phase. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 949 through 950. The code is exempt from POA reporting. Coders also document this condition as contusion of flank.
Code Identity
Code Classification
Present on Admission (POA)Billing
S30.13XD is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Contusion of flank
- Contusion of left flank
- Contusion of right flank
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Superficial injury of abdomen, lower back, pelvis and external genitals (S30). Use the following options for the applicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.
Code History & ChangesHistory
New Code S30.13XD was added to the ICD-10-CM code set for FY 2026, effective October 1, 2025.
Replacement S30.13XD replaces the following previously assigned code(s):
- S30.1XXD - Contusion of abdominal wall, subsequent encounter
Questions About S30.13XDOverview
Is S30.13XD (Contusion of flank (latus) region) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report contusion of flank (latus) region, subsequent encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character D in S30.13XD mean?
The final character D marks a subsequent encounter: use it for routine care while the contusion of flank (latus) region is healing, after active treatment has ended.
What MS-DRG does S30.13XD group to?
When contusion of flank (latus) region, subsequent encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 949, 950, with relative weights from 0.6277 to 1.1897 depending on complications. Higher weights mean higher Medicare reimbursement.
Is S30.13XD exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for contusion of flank (latus) region, subsequent encounter on inpatient claims.
