Alphabetic Index FY2027

N14.2

Nephropathy induced by unspecified drug, medicament or biological substance

FY2027Chapter 14: Diseases of the genitourinary system/N10–N16 Renal tubulo-interstitial diseases

BillableComplete code, valid to report
Care settingsHome Health Primary · MMTA - Gastrointestinal tract and Genitourinary system

N14.2 (also written N142) is a billable ICD-10-CM diagnosis code for nephropathy induced by unspecified drug, medicament or biological substance. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 6 codes in category N14 (Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions). The Alphabetic Index lists it under 2 entries. Its coding notes include a Code first instruction, a Use additional code instruction, 1 Excludes1 entry and 8 Excludes2 entries.

Code first

If the underlying condition listed here is present and known, sequence it first.

Inherited from N14 Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions
  • poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)

Use additional code

Add the listed code as a secondary code, if known.

Inherited from N14 Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions
  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Also from chapter/block level (1 note)
Inherited from N10–N16 Renal tubulo-interstitial diseases
  • pyeloureteritis cystica (N28.85)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (8 notes)
Inherited from Chapter 14 Diseases of the genitourinary system
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Care settings

How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.

Home Health Primary

Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the MMTA - Gastrointestinal tract and Genitourinary system clinical group.

Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026

Includes

Further defines or gives examples of the content of the category.

Also from chapter/block level (1 note)
Inherited from N10–N16 Renal tubulo-interstitial diseases
  • pyelonephritis

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 2 entries