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S63.125 vs S63.126

S63.125 (Dislocation of interphalangeal joint of left thumb) compared with S63.126 (Dislocation of interphalangeal joint of unspecified thumb), from the official CMS tabular data. S63.125 and S63.126 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S63.125
Left
Dislocation of interphalangeal joint of left thumb
S63.126
Unspecified
Dislocation of interphalangeal joint of unspecified thumb

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. S63.125 and S63.126 name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

S63.125Dislocation of interphalangeal joint of left thumbS63.126Dislocation of interphalangeal joint of unspecified thumb
Billing statusNon-billable headerNon-billable header
ClassificationS00-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)
DefinitionDislocation of interphalangeal joint of left thumb is a non-billable ICD-10-CM category code (S63.125).Dislocation of interphalangeal joint of unspecified thumb is a non-billable ICD-10-CM category code (S63.126).
7th characterThe appropriate 7th character is to be added to each code from category S63The 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