Final answer:
The ICD code for a keloid scar is 701.4, which represents a hypertrophic scar caused by continuous collagen production after a wound has healed.
Step-by-step explanation:
When dealing with medical coding for scars and keloids, it is important to reference the correct International Classification of Diseases (ICD) code. A keloid is a type of hypertrophic scar that occurs due to an overproduction of scar tissue where collagen formation continues even after a wound has been healed.
The ICD code that indicates a keloid scar is 701.4. This differs from other types of scars like atrophic scars, which are sunken and often result from acne or chickenpox, or from squamous cell carcinoma which has a completely different code.
Understanding these nuances within scar tissue and their appropriate ICD codes is crucial for accurate medical documentation and can influence treatment decisions.