Other melanin hyperpigmentation

This code describes an increase in melanin pigment in the skin, resulting in darker patches or spots, that is not otherwise specified or classified. This hyperpigmentation is typically benign and can vary in size, shape, and distribution. It represents a broad category for various forms of melanin overproduction.

Use this code for documented cases of hyperpigmentation where a more specific cause (e.g., freckles, lentigines, post-inflammatory hyperpigmentation) is not identified or cannot be coded with a more precise ICD-10-CM code. Documentation should clearly indicate the presence of increased melanin pigmentation without further specific diagnostic detail.

• Do not use this code if a more specific code for the type of hyperpigmentation (e.g., L81.0 for post-inflammatory hyperpigmentation, L81.1 for chloasma) is available and supported by documentation.
• Consider sequencing this code after a code for an underlying condition if the hyperpigmentation is a manifestation of another disease process.
• Ensure the documentation specifies "melanin" hyperpigmentation to differentiate from other forms of skin discoloration.