S83.61XD vs S90

S83.61XD (Sprain of the superior tibiofibular joint and ligament, right knee, subsequent encounter) compared with S90 (Superficial injury of ankle, foot and toes), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2). MedCoder-derived

Relationship

Informational

Excludes2 relationship

S83.61XD

Sprain of the superior tibiofibular joint and ligament, right knee, subsequent encounter

↔

S90

Superficial injury of ankle, foot and toes

Distinct conditions — both may be reported.

“injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)”

An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.

Source: CMS ICD-10-CM tabular instructional notes

Can these codes be reported together?

Yes, when both are documented. S83.61XD carries an Excludes2 note covering S90: “injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

	S83.61XDSprain of the superior tibiofibular joint and ligament, right knee, subsequent encounter	S90Superficial injury of ankle, foot and toes
Billing status	Billable	Non-billable header Report instead: S90.00XA, S90.00XD, S90.00XS, S90.01XA, S90.01XD
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	Sprain of the superior tibiofibular joint and ligament, right knee, subsequent encounter is a billable ICD-10-CM diagnosis code (S83.61D).	Superficial injury of ankle, foot and toes is a non-billable ICD-10-CM category code (S90).
7th character	The appropriate 7th character is to be added to each code from category S83	The appropriate 7th character is to be added to each code from category S90
Includes	avulsion of joint or ligament of knee laceration of cartilage, joint or ligament of knee sprain of cartilage, joint or ligament of knee traumatic hemarthrosis of joint or ligament of knee	—

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