N14.11Contrast-induced nephropathy

N14.11 is the ICD-10-CM diagnosis code for Contrast-induced nephropathy. It belongs to category N14 (Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions), block N10-N16 (renal tubulo-interstitial diseases) and chapter 14 (diseases of the genitourinary system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within N14.1 (nephropathy induced by other drugs, medicaments and biological substances), N14.11 is specifically for Contrast-induced nephropathy. Related codes cover nephropathy induced by other drugs, medicaments and biological substances (N14.19).

The conditions in its Excludes2 note aren't part of N14.11, but may be coded alongside it if the patient has both: acute kidney failure (N17.-).

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

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

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 698 (Other Kidney and Urinary Tract Diagnoses with MCC, relative weight 1.6398), DRG 699 (Other Kidney and Urinary Tract Diagnoses with CC, relative weight 1.0003) and DRG 700 (Other Kidney and Urinary Tract Diagnoses without CC/MCC, relative weight 0.6741), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It was added in FY2023, effective October 1, 2022.