Nephrop induced by unsp drug, medicament or biolg sub

This code signifies kidney damage or disease that is directly caused by exposure to a medication, chemical, or biological agent. It represents a drug-induced nephropathy where the specific causative substance is not identified or documented. This condition can manifest as acute kidney injury, chronic kidney disease, or other forms of renal dysfunction.

Use this code when documentation clearly indicates nephropathy as an adverse effect of a drug, medicament, or biological substance, but the specific agent responsible is not specified. This is appropriate when the physician has identified the drug as the cause but has not documented which drug. Supporting documentation would include physician notes detailing drug exposure and subsequent renal impairment.

• Always attempt to identify the specific drug or substance causing the nephropathy to allow for a more precise code from the N14.0-N14.4 series.
• Sequence this code after the code for the underlying condition being treated by the drug, if applicable, or as a primary diagnosis if the nephropathy is the primary reason for the encounter.
• Do not use this code if the nephropathy is due to an overdose or poisoning; instead, refer to codes in Chapter 19 (Injury, poisoning and certain other consequences of external causes).