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S93.312 vs S93.313

S93.312 (Subluxation of tarsal joint of left foot) compared with S93.313 (Subluxation of tarsal joint of unspecified foot), from the official CMS tabular data. S93.312 and S93.313 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S93.312
Left
Subluxation of tarsal joint of left foot
S93.313
Unspecified
Subluxation of tarsal joint of unspecified foot

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. S93.312 and S93.313 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

S93.312Subluxation of tarsal joint of left footS93.313Subluxation of tarsal joint of unspecified foot
Billing statusNon-billable header

Report instead: S93.312A, S93.312D, S93.312S

Non-billable header

Report instead: S93.313A, S93.313D, S93.313S

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)
DefinitionSubluxation of tarsal joint of left foot is a non-billable ICD-10-CM category code (S93.312).Subluxation of tarsal joint of unspecified foot is a non-billable ICD-10-CM category code (S93.313).
7th characterThe appropriate 7th character is to be added to each code from category S93The appropriate 7th character is to be added to each code from category S93
Includes
avulsion of joint or ligament of ankle, foot and toe
laceration of cartilage, joint or ligament of ankle, foot and toe
sprain of cartilage, joint or ligament of ankle, foot and toe
traumatic hemarthrosis of joint or ligament of ankle, foot and toe
avulsion of joint or ligament of ankle, foot and toe
laceration of cartilage, joint or ligament of ankle, foot and toe
sprain of cartilage, joint or ligament of ankle, foot and toe
traumatic hemarthrosis of joint or ligament of ankle, foot and toe

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources