Toxic liver disease with hepatic necrosis, with coma

This code signifies severe liver damage characterized by the death of liver cells (necrosis) due to exposure to toxic substances, leading to the development of hepatic encephalopathy with coma. It represents an acute and life-threatening form of toxic liver injury where the liver's inability to detoxify the blood results in profound neurological dysfunction.

Apply this code when documentation clearly indicates liver necrosis caused by a drug, chemical, or other toxin, and the patient presents with a comatose state. This typically occurs in cases of acute liver failure secondary to overdose, adverse drug reactions, or exposure to hepatotoxic agents. Supporting documentation would include toxicology reports, liver biopsy findings, and neurological assessments confirming coma.

• Always identify the specific toxic agent if known, using an additional code from categories T36-T65.
• Distinguish from other forms of acute liver failure without a clear toxic etiology or without progression to coma.
• Ensure documentation explicitly states "coma" to support the specificity of this code; otherwise, a less specific code for toxic liver disease with hepatic necrosis (K71.10) may be more appropriate.