S43.034A (Inferior dislocation of right humerus, initial encounter) compared with S43.034D (Inferior dislocation of right humerus, subsequent encounter), from the official CMS tabular data. S43.034A and S43.034D code the same injury at a different phase of treatment. MedCoder-derived
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. S43.034A and S43.034D 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.
| S43.034AInferior dislocation of right humerus, initial encounter | S43.034DInferior dislocation of right humerus, subsequent encounter | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | S00-T88 — Injury, poisoning and certain other consequences of external causes | S00-T88 — Injury, poisoning and certain other consequences of external causes |
| Definition | Inferior dislocation of right humerus, initial encounter is a billable ICD-10-CM diagnosis code (S43.034A). | Inferior dislocation of right humerus, subsequent encounter is a billable ICD-10-CM diagnosis code (S43.034D). |
| 7th character | The appropriate 7th character is to be added to each code from category S43 | The appropriate 7th character is to be added to each code from category S43 |
| Includes | avulsion of joint or ligament of shoulder girdle laceration of cartilage, joint or ligament of shoulder girdle sprain of cartilage, joint or ligament of shoulder girdle traumatic hemarthrosis of joint or ligament of shoulder girdle | avulsion of joint or ligament of shoulder girdle laceration of cartilage, joint or ligament of shoulder girdle sprain of cartilage, joint or ligament of shoulder girdle traumatic hemarthrosis of joint or ligament of shoulder girdle |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources