Is ICD-10-CM code N14 billable?

No, N14 (Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code N14 belong to?

N14 belongs to Chapter 14 of the ICD-10-CM tabular list: N00–N99 (Diseases of the Genitourinary System).

N14Not billable, use a more specific code below

Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions

In Renal tubulo-interstitial diseases (N10-N16), chapter 14: Diseases of the Genitourinary System

6 billable codes under N14: none are a CC or MCC; none map to an HCC.

Instructional notes

Code first: code the underlying condition first, then this code

poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)

Use additional code: add a second code for this, listed after this one

code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Also applies, from Renal tubulo-interstitial diseases (N10-N16)

These notes sit on N10-N16 and apply to every code under it, including N14.

Includes: conditions that are coded here

pyelonephritis

Excludes1: not coded here, use a different code

pyeloureteritis cystica (N28.85)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers chronic kidney disease staging, CKD in kidney transplant patients, and sequencing CKD with related conditions such as diabetes and hypertension.

Chronic kidney disease (page 62)

Read Section I.C.14 (page 62)

All codes under N14

N14 can't be used on a claim. Pick a billable code below; grey headings group them.

N14 MS-DRGs

As the principal diagnosis, all 6 billable codes under N14 group to MS-DRG 698, 699, or 700 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Other codes that refer to N14

Notes on these codes point to N14.

N17-N19 Excludes2: drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

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.

Kidney Diseases

You have two kidneys, each about the size of your fist. They are near the middle of your back, just below the rib cage. Inside each kidney there are about a million tiny structures called nephrons. They filter your blood. They remove wastes and extra water, which become urine. The urine flows through tubes called ureters. It goes to your bladder, which stores the urine until you go to the bathroom.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.