S30.865 vs S31.55
S30.865 (Insect bite (nonvenomous) of unspecified external genital organs, male) compared with S31.55 (Open bite of unspecified external genital organs), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. S31.55 carries an Excludes1 note covering S30.865: “superficial bite of unspecified external genital organs (S30.865, S30.866, S30.875, S30.876)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| S30.865Insect bite (nonvenomous) of unspecified external genital organs, male | S31.55Open bite of unspecified external genital organs | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header Report instead: S31.551A, S31.551D, S31.551S, S31.552A, S31.552D |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Insect bite (nonvenomous) of unspecified external genital organs, male is a non-billable ICD-10-CM category code (S30.865). | Open bite of unspecified external genital organs is a non-billable ICD-10-CM category code (S31.55). |
| 7th character | The appropriate 7th character is to be added to each code from category S30 | The appropriate 7th character is to be added to each code from category S31 |
| Includes | injuries to the abdominal wall injuries to the anus injuries to the buttock injuries to the external genitalia | injuries to the abdominal wall injuries to the anus injuries to the buttock injuries to the external genitalia |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources