2026 ICD-10-CM Diagnosis Code S30.82ADBlister (nonthermal) of flank, subsequent encounter
S30.82AD is a billable ICD-10-CM diagnosis code for blister (nonthermal) of flank, 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.
Code Identity
Code Classification
Present on Admission (POA)Billing
S30.82AD is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
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 S30.82AD was added to the ICD-10-CM code set for FY 2026, effective October 1, 2025.
Replacement S30.82AD replaces the following previously assigned code(s):
- S30.821D - Blister (nonthermal) of abdominal wall, subsequent encounter
Questions About S30.82ADOverview
Is S30.82AD (Blister (nonthermal) of flank) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report blister (nonthermal) of flank, subsequent encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character D in S30.82AD mean?
The final character D marks a subsequent encounter: use it for routine care while the blister (nonthermal) of flank is healing, after active treatment has ended.
What MS-DRG does S30.82AD group to?
When blister (nonthermal) of flank, 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 S30.82AD 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 blister (nonthermal) of flank, subsequent encounter on inpatient claims.
