S30.842A (External constriction of penis, initial encounter) compared with S30.842D (External constriction of penis, subsequent encounter), from the official CMS tabular data. S30.842A and S30.842D code the same injury at a different phase of treatment.
Same underlying diagnosis, different encounter phase.
The 7th character records the phase of care for the encounter being coded, so a single encounter takes one of these characters, not several. Review whether both phases belong on the same episode of care.
Source: ICD-10-CM Official Guidelines, Section I.C.19.a
Same injury, other encounter phase. S30.842A and S30.842D code the same injury at a different phase of treatment, set by the 7th character.
The 7th character records the type of care given at the encounter being coded (ICD-10-CM Official Guidelines, Section I.C.19.a), so one encounter takes one of these, not both.
| S30.842AExternal constriction of penis, initial encounter | S30.842DExternal constriction of penis, subsequent encounter | |
|---|---|---|
| Billing status | Billable | Billable |
| 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 | External constriction of penis, initial encounter is a billable ICD-10-CM diagnosis code (S30.842A). | External constriction of penis, subsequent encounter is a billable ICD-10-CM diagnosis code (S30.842D). |
| 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 S30 |
| 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 |
| Use additional code | cause code to identify the constricting item (W49.0-) | cause code to identify the constricting item (W49.0-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources