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What is the ICD-10-CM code for a bruised left knee, initial encounter?

A. S81.031A
B. S89.92XA
C. S90.912A
D. S80.02XA

Answer :

We need to determine which ICD-10-CM code represents a bruised left knee at the initial encounter. Let’s break down the reasoning step-by-step.

1. We are given several codes, and we must choose the one that specifies a bruise (a superficial injury) on the left knee during the initial encounter.

2. In the ICD-10-CM coding system, the first part of the code usually identifies the general type of injury and the specific body part. For a bruise, we expect an injury code that mentions a contusion or superficial injury rather than a fracture or open wound.

3. Among the options provided, the code that specifically corresponds to a bruise on the left knee, with "initial encounter" indicated by the appropriate extension, is:

[tex]$$\text{S80.02XA}$$[/tex]

4. Here, the “S80” segment typically relates to superficial injuries of the knee and leg. The following digits further specify that the injury is on the left knee, and the “XA” extension indicates that it is the initial encounter.

Therefore, the correct answer is:

[tex]$$\boxed{S80.02XA}$$[/tex]

This is the ICD-10-CM code for a bruised left knee, initial encounter.