S63.229A (Subluxation of unspecified interphalangeal joint of unspecified finger, initial encounter) compared with S63.229S (Subluxation of unspecified interphalangeal joint of unspecified finger, sequela), from the official CMS tabular data. S63.229A and S63.229S 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. S63.229A and S63.229S 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.
| S63.229ASubluxation of unspecified interphalangeal joint of unspecified finger, initial encounter | S63.229SSubluxation of unspecified interphalangeal joint of unspecified finger, 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 | Subluxation of unspecified interphalangeal joint of unspecified finger, initial encounter is a billable ICD-10-CM diagnosis code (S63.229A). | Subluxation of unspecified interphalangeal joint of unspecified finger, sequela is a billable ICD-10-CM diagnosis code (S63.229S). |
| 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