S82.53XG vs S88

S82.53XG (Displaced fracture of medial malleolus of unspecified tibia, subsequent encounter for closed fracture with delayed healing) compared with S88 (Traumatic amputation of lower leg), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.

Relationship

Conflict

Excludes1 conflict

S82.53XG

Displaced fracture of medial malleolus of unspecified tibia, subsequent encounter for closed fracture with delayed healing

↔

S88

Traumatic amputation of lower leg

Not coded here — these two are mutually exclusive.

“traumatic amputation of lower leg (S88.-)”

An Excludes1 note means the two conditions cannot occur together, so the pair should not be reported for the same encounter. The sole exception is when the conditions are documented as unrelated to each other.

Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a

Can these codes be reported together?

No — do not report together. S82.53XG carries an Excludes1 note covering S88: “traumatic amputation of lower leg (S88.-)”

Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Side by side

	S82.53XGDisplaced fracture of medial malleolus of unspecified tibia, subsequent encounter for closed fracture with delayed healing	S88Traumatic amputation of lower leg
Billing status	Billable	Non-billable header Report instead: S88.011A, S88.011D, S88.011S, S88.012A, S88.012D
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	Displaced fracture of medial malleolus of unspecified tibia, subsequent encounter for closed fracture with delayed healing is a billable ICD-10-CM diagnosis code (S82.53G).	Traumatic amputation of lower leg is a non-billable ICD-10-CM category code (S88).
7th character	The appropriate 7th character is to be added to all codes from category S82	The appropriate 7th character is to be added to each code from category S88
Includes	fracture of malleolus	An amputation not identified as partial or complete should be coded to complete

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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