S31.55 — Open bite of unspecified external genital organs
Is S31.55 billable?
No — S31.55 is a non-billable header code. S31.55 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 6 billable codes beneath S31.55.
Billable codes under this header
- S31.551AOpen bite of unspecified external genital organs, male, initial encounter
- S31.551DOpen bite of unspecified external genital organs, male, subsequent encounter
- S31.551SOpen bite of unspecified external genital organs, male, sequela
- S31.552AOpen bite of unspecified external genital organs, female, initial encounter
- S31.552DOpen bite of unspecified external genital organs, female, subsequent encounter
- S31.552SOpen bite of unspecified external genital organs, female, sequela
S31.55 at a glance
| Code | S31.55 |
|---|---|
| Description | Open bite of unspecified external genital organs |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with S31.55 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Inclusion terms
Alternative wording in documentation that is classified to S31.55.
- Bite of unspecified external genital organs NOS
Excludes1 — never code together — inherited from S31
The conditions below can never be reported together with S31.55 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from S31.5
The conditions below can never be reported together with S31.55 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from Chapter 19
Report an additional code alongside S31.55 to fully describe the condition. S31.55 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of S31.55, but a patient may have both at the same time. When documentation supports it, S31.55 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S30-S39
The conditions below are not part of S31.55, but a patient may have both at the same time. When documentation supports it, S31.55 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S31
The conditions below are not part of S31.55, but a patient may have both at the same time. When documentation supports it, S31.55 and the excluded code may both be reported.
Code also — inherited from S31
Two codes may be needed to describe the condition fully. Whether S31.55 is sequenced first depends on the reason for the encounter.
What codes fall under S31.55? (2)
How long has S31.55 existed?
S31.55 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the S31.5 family? (5)
- S31.50Unspecified open wound of unspecified external genital organsnot billable
- S31.51Laceration without foreign body of unspecified external genital organsnot billable
- S31.52Laceration with foreign body of unspecified external genital organsnot billable
- S31.53Puncture wound without foreign body of unspecified external genital organsnot billable
- S31.54Puncture wound with foreign body of unspecified external genital organsnot billable