S63.116A (Dislocation of metacarpophalangeal joint of unspecified thumb, initial encounter) compared with S63.116S (Dislocation of metacarpophalangeal joint of unspecified thumb, sequela), from the official CMS tabular data. S63.116A and S63.116S 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. S63.116A and S63.116S 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.
| S63.116ADislocation of metacarpophalangeal joint of unspecified thumb, initial encounter | S63.116SDislocation of metacarpophalangeal joint of unspecified thumb, sequela | |
|---|---|---|
| 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 | Dislocation of metacarpophalangeal joint of unspecified thumb, initial encounter is a billable ICD-10-CM diagnosis code (S63.116A). | Dislocation of metacarpophalangeal joint of unspecified thumb, sequela is a billable ICD-10-CM diagnosis code (S63.116S). |
| 7th character | The appropriate 7th character is to be added to each code from category S63 | The appropriate 7th character is to be added to each code from category S63 |
| Includes | avulsion of joint or ligament at wrist and hand level laceration of cartilage, joint or ligament at wrist and hand level sprain of cartilage, joint or ligament at wrist and hand level traumatic hemarthrosis of joint or ligament at wrist and hand level | avulsion of joint or ligament at wrist and hand level laceration of cartilage, joint or ligament at wrist and hand level sprain of cartilage, joint or ligament at wrist and hand level traumatic hemarthrosis of joint or ligament at wrist and hand level |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources