Is S61.359 a billable ICD-10-CM code?

No. S61.359 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does S61.359 sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the wrist, hand and fingers (S60-S69).

What cannot be coded together with S61.359?

S61.359 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 S61.359 (S61.35, S61) and apply to it just the same.

S61.359

S61.359 — Open bite of unspecified finger with damage to nail

Non-billable headerICD-10-CM

S61.359 is a non-billable header ICD-10-CM code for open bite of unspecified finger with damage to nail. 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 S61

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 inherited from the categories above S61.359

These are not written on S61.359, but they bind it: a note on a category applies to every code beneath it. Billing S61.359 with anything listed here is a denial.

Written on S61.35 — Open bite of finger with damage to nail

superficial bite of finger (S60.46-, S60.47-)

Written on S61 — Open wound of wrist, hand and fingers

open fracture of wrist, hand and finger (S62.- with 7th character B)
traumatic amputation of wrist and hand (S68.-)

Risk adjustment

S61.359 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.

How S61.359 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to S61.359.

Bite›finger›with›damage to nail

Code history

S61.359 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 S61.359

3 child codes. Green means billable.

Related codes at this level

Codes that share S61.35. If S61.359 is not quite right, the correct code is usually one of these.

Questions about S61.359

Is S61.359 a billable ICD-10-CM code?: No. S61.359 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does S61.359 sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the wrist, hand and fingers (S60-S69).
What cannot be coded together with S61.359?: S61.359 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 S61.359 (S61.35, S61) and apply to it just the same.