2026 ICD-10-CM Diagnosis Code S30.84AA
External constriction of flank, initial encounter
- ICD-10-CM Code:
- S30.84AA
- ICD-10 Code for:
- External constriction of flank, initial encounter
- Is Billable?
- Yes - Valid for Submission
- Code Navigator:
S30.84AA is a billable diagnosis code used to specify a medical diagnosis of external constriction of flank, initial encounter. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2025 through September 30, 2026.
S30.84AA is an initial encounter code, includes a 7th character and should be used while the patient is receiving active treatment for a condition like external constriction of flank. According to ICD-10-CM Guidelines an "initial encounter" doesn't necessarily means "initial visit". The 7th character should be used when the patient is undergoing active treatment regardless if new or different providers saw the patient over the course of a treatment. The appropriate 7th character codes should also be used even if the patient delayed seeking treatment for a condition.
Coding Guidelines
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 aplicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
New 2026 ICD-10-CM Code
S30.84AA is new to ICD-10-CM code set for the FY 2026, effective October 1, 2025. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2025. This is a new and revised code for the FY 2026 (October 1, 2025 - September 30, 2026).
Replacement Code
S3084AA replaces the following previously assigned ICD-10-CM code(s):
- S30.841A - External constriction of abdominal wall, initial encounter
Code History
- FY 2026 - Code Added, effective from 10/1/2025 through 9/30/2026
