2026 ICD-10-CM Diagnosis Code N14Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions
N14 is a non-billable ICD-10-CM category code for drug- and heavy-metal-induced tubulo-interstitial and tubular conditions, so it cannot be submitted on claims. Use a more specific code from this category instead, such as N14.0, N14.11, N14.19, and N14.2.
Code Identity
Code Classification
Specific Coding for Drug- & heavy-metal-induced tubulo-interstitial & tublr condOverview
Non-specific codes like N14 require more characters. Use one of these billable codes instead:
Use N14.0 for Analgesic nephropathy
N14.1 for Nephropathy induced by other drugs, medicaments and biological substances
Use N14.11 for Contrast-induced nephropathy
Use N14.19 for Nephropathy induced by other drugs, medicaments and biological substances
Use N14.2 for Nephropathy induced by unspecified drug, medicament or biological substance
Use N14.3 for Nephropathy induced by heavy metals
Use N14.4 for Toxic nephropathy, not elsewhere classified
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Code First
Use Additional Code
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
Patient EducationClinical
Drug Reactions
Most of the time, medicines make our lives better. They reduce aches and pains, fight infections, and control problems such as high blood pressure or diabetes. But medicines can also cause unwanted reactions, such as drug interactions, side effects, and allergies.
The full article covers:
- What is a drug interaction?
- What are side effects?
- What are drug allergies?
- How can I stay safe when taking medicines?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Code HistoryHistory
Questions About N14Overview
Is N14 a billable code?
No. This is a category header that groups the codes for drug- and heavy-metal-induced tubulo-interstitial and tubular conditions, and headers cannot be submitted on claims. Claims for drug- and heavy-metal-induced tubulo-interstitial and tubular conditions need a more specific code from this category, such as N14.0, N14.11, and N14.19.
