Neoplasm related pain (acute) (chronic)

This code signifies pain directly caused by a malignant neoplasm, its metastatic spread, or its treatment. It encompasses both acute and chronic pain presentations associated with cancer. The pain can arise from tumor compression, invasion of nerves or tissues, or as a side effect of chemotherapy, radiation, or surgery.

Use this code when documentation clearly links the patient's pain to a diagnosed malignancy. This includes pain from primary tumors, metastatic lesions, or pain resulting from cancer-directed therapies. Supporting documentation should specify the presence of cancer and the direct relationship of the pain to the neoplastic process.

• Always sequence the underlying malignancy code (C00-C96) before this pain code.
• Do not use this code for general pain in a cancer patient if the pain is not directly attributed to the neoplasm or its treatment.
• Consider additional codes for the specific site of pain (e.g., M54.5 for low back pain) if documented, but this code takes precedence for neoplasm-related etiology.