Is S28.0XXA a billable ICD-10-CM code?

Yes. S28.0XXA is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does S28.0XXA sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the thorax (S20-S29).

What cannot be coded together with S28.0XXA?

S28.0XXA carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above S28.0XXA (S28.0) and apply to it just the same.

S28.0XXA

S28.0XXA — Crushed chest, initial encounter

Billable / specific codeICD-10-CM

S28.0XXA is a billable, specific ICD-10-CM code for crushed chest, initial encounter. It is valid for submission on a claim.

7th character "A" — initial encounter

The appropriate 7th character is to be added to each code from category S28

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

flail chest (S22.5)

Use additional code

Add a secondary code to capture the detail described below.

code for all associated injuries

Excludes1 inherited from the categories above S28.0XXA

These are not written on S28.0XXA, but they bind it: a note on a category applies to every code beneath it. Billing S28.0XXA with anything listed here is a denial.

Written on S28.0 — Crushed chest

flail chest (S22.5)

Risk adjustment

S28.0XXA does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

S28.0XXA is named in 5 Medicare coverage policies — 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A54767Billing and Coding: Medicare Preventive Coverage for Certain Vaccines
A56459Billing and Coding: Debridement Services
A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
A56766Billing and Coding: Incision and Drainage (I&D) of Abscess of Skin, Subcutaneous and Accessory Structures

Code history

S28.0XXA has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share S28.0. If S28.0XXA is not quite right, the correct code is usually one of these.

Questions about S28.0XXA

Is S28.0XXA a billable ICD-10-CM code?: Yes. S28.0XXA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does S28.0XXA sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the thorax (S20-S29).
What cannot be coded together with S28.0XXA?: S28.0XXA carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above S28.0XXA (S28.0) and apply to it just the same.