MCMedicalCodingSoftware
S09.313A

S09.313A: Primary blast injury of ear, bilateral, initial encounter

Billable / specific codeICD-10-CMbilateral

S09.313A is a billable, specific ICD-10-CM code for primary blast injury of ear, bilateral, initial encounter. It is valid for submission on a claim.

Check S09.313A with the rest of the claim: free scrubber

7th character "A": initial encounter

The appropriate 7th character is to be added to each code from category S09

A
initial encounter
D
subsequent encounter
S
sequela

Excludes1 inherited from the categories above S09.313A

A category’s note binds every code beneath it.

Written on S09.3: Other specified and unspecified injury of middle and inner ear

Excludes2 inherited from the categories above S09.313A

Not part of this code, but both may be coded when both are present.

Written on S09.3: Other specified and unspecified injury of middle and inner ear

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

S09.313A is named in 8 Medicare coverage policies: 8 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A52438Billing and Coding: Tetanus Immunization
  • A53058Billing and Coding: Home Health Physical Therapy
  • A53065Billing and Coding: Outpatient Physical Therapy
  • A55909Billing and Coding: Wound Care

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under S09.313

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.