Is S51.0 a billable ICD-10-CM code?

No. S51.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does S51.0 sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the elbow and forearm (S50-S59).

What cannot be coded together with S51.0?

S51.0 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 S51.0 (S51) and apply to it just the same.

S51.0

S51.0 — Open wound of elbow

Non-billable headerICD-10-CM

S51.0 is a non-billable header ICD-10-CM code for open wound of elbow. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category S51

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 inherited from the categories above S51.0

These are not written on S51.0, but they bind it: a note on a category applies to every code beneath it. Billing S51.0 with anything listed here is a denial.

Written on S51 — Open wound of elbow and forearm

open fracture of elbow and forearm (S52.- with open fracture 7th character)
traumatic amputation of elbow and forearm (S58.-)

Excludes2 inherited from the categories above S51.0

Also inherited, and the opposite of Excludes1: these conditions are not part of S51.0, but a patient can have both, so you may code both.

Written on S51 — Open wound of elbow and forearm

open wound of wrist and hand (S61.-)

Other codes that can never be billed with S51.0

These codes carry an Excludes1 note pointing at S51.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading S51.0 alone.

S50.37Other superficial bite of elbow

Risk adjustment

S51.0 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.

Code history

S51.0 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead S51.0

6 child codes. Green means billable.

Related codes at this level

Codes that share S51. If S51.0 is not quite right, the correct code is usually one of these.

S51.8Open wound of forearm

Questions about S51.0

Is S51.0 a billable ICD-10-CM code?: No. S51.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does S51.0 sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the elbow and forearm (S50-S59).
What cannot be coded together with S51.0?: S51.0 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 S51.0 (S51) and apply to it just the same.