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S93.422 vs S93.429

S93.422 (Sprain of deltoid ligament of left ankle) compared with S93.429 (Sprain of deltoid ligament of unspecified ankle), from the official CMS tabular data. S93.422 and S93.429 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S93.422
Left
Sprain of deltoid ligament of left ankle
S93.429
Unspecified
Sprain of deltoid ligament of unspecified ankle

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. S93.422 and S93.429 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

S93.422Sprain of deltoid ligament of left ankleS93.429Sprain of deltoid ligament of unspecified ankle
Billing statusNon-billable header

Report instead: S93.422A, S93.422D, S93.422S

Non-billable header

Report instead: S93.429A, S93.429D, S93.429S

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)
DefinitionSprain of deltoid ligament of left ankle is a non-billable ICD-10-CM category code (S93.422).Sprain of deltoid ligament of unspecified ankle is a non-billable ICD-10-CM category code (S93.429).
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