N14.11 ICD-10-CM Code: Contrast-induced nephropathy

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for N14.11 in the official ICD-10-CM tabular list, quoted as published.

Notes without a marker are published on N14.11 itself; “inherited from” names the category or block whose note applies here.

Coder workflow for N14.11

MedCoder structured workflow — derived from this code’s own official record

Before you code N14.11

1. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with N14.11. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

   See the official tabular notes

Choose the right path

1. Does the documentation support a condition named in N14.11’s Excludes1 note?
   Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
   No → Continue.

   ReviewN28.85

2. Is the underlying (etiologic) condition the Code First note names documented?
   Yes → Sequence the underlying condition first, then N14.11.
   No → Continue; do not add an underlying condition the record does not document.

Consider N14.11. Then work the Use Additional Code note, and confirm the code is valid for the date of service in the Verify section.

Documentation check

The provider’s diagnostic statement

Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).

The underlying (etiologic) condition

Named in the Code First note; sequenced before this code when documented (Guidelines I.A.13).

The conditions the Use Additional Code note names

Reported with this code when documented; a conditional instruction (“if applicable”, “if known”) applies only when the record supports it.

Official instructions as workflow

• Excludes1 — check before selecting N14.11(1 note)

  Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with N14.11: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

  CompareN28.85

  See the official tabular notes · Guidelines I.A.12.a

• Excludes2 — not part of N14.11(1 note)

  Coding workflow: The conditions named in this note are not included in N14.11. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

  CompareN17

  See the official tabular notes · Guidelines I.A.12.b

• Code First — sequencing check(1 note)

  Coding workflow: Check whether the underlying or etiologic condition the note names is documented. When it is, sequence it before N14.11. Do not add an underlying condition the record does not document.

  See the official tabular notes · Guidelines I.A.13

• Use Additional Code — after identifying N14.11(1 note)

  Coding workflow: Check whether the documentation supports the additional code(s) the note names, and report them with N14.11 when it does. Where the instruction is conditional (“if applicable”, “if known”), it applies only when the record documents the condition.

  See the official tabular notes · Guidelines I.A.13

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Indexed Clinical Terms (3)

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

• Nephropathy, contrast medium, radiography
• Nephropathy, contrast-induced
• Nephropathy, drug-induced, contrast-induced

Don’t confuse N14.11 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of N14.11 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

• N28.85— Excludes1 conflict (Conflict)

  Not coded here — these two are mutually exclusive.

  Not reported together with this code, except where the two conditions are documented as unrelated.

  What moves you there: Documentation of pyeloureteritis cystica moves the case to N28.85; the two are not reported together unless documented as unrelated.

  Full comparison: N14.11 vs N28.85 →

• N17— Excludes2 relationship (Informational)

  Distinct conditions — both may be reported.

  A distinct condition — both may be reported when both are documented.

  What moves you there: Documentation of acute kidney failure adds N17; it is not part of this code and both may be reported when both are documented.

  Full comparison: N14.11 vs N17 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Decision Points

The directives on this code's own record, as a pre-claim checklist.

1. Sequencing: 1 Code First instruction — the underlying condition is sequenced before this code when present. See the Code First notes
2. 1 Use Additional Code instruction — report the named additional code(s) when the documentation supports them. See the Use Additional Code notes
3. 1 Excludes1 entry — codes named there are generally not reported together with this code (Guidelines I.A.12.a). See the Excludes1 notes
4. 1 Excludes2 entry — those conditions are not part of this code and may be reported additionally when documented. See the Excludes2 notes

Checklist rows are derived from this code's own official directives; the wording of each check is MedCoder editorial. The official notes themselves are in the sections each row links to.

Verify Before Coding

• No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

Other codes that name N14.11 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 4 Excludes2 notes: N17 — Acute kidney failure (via N14.-), N17-N19 — Acute kidney failure and chronic kidney disease (N17-N19) (via N14.-), N18 — Chronic kidney disease (CKD) (via N14.-), N19 — Unspecified kidney failure (via N14.-).

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

Referenced by 21 Code First instructions: T36 — Poisoning by, adverse effect of and underdosing of systemic antibiotics, T36-T39 — Antibiotics & Anti-infectives (T36-T39), T36-T50 — Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50), T37 — Poisoning by, adverse effect of and underdosing of other systemic anti-infectives and antiparasitics, T38 — Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified, T39 — Poisoning by, adverse effect of and underdosing of nonopioid analgesics, antipyretics and antirheumatics, T40 — Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens], T40-T41 — Analgesics & Antipyretics (T40-T41), T41 — Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases, T42 — Poisoning by, adverse effect of and underdosing of antiepileptic, sedative- hypnotic and antiparkinsonism drugs, T42-T43 — Anticonvulsants & Psychotropics (T42-T43), T43 — Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified, T44 — Poisoning by, adverse effect of and underdosing of drugs primarily affecting the autonomic nervous system, T44-T46 — Cardiovascular & Gastrointestinal (T44-T46), T45 — Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified, T46 — Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system, T47 — Poisoning by, adverse effect of and underdosing of agents primarily affecting the gastrointestinal system, T47-T50 — Hormones & Systemic Agents (T47-T50), T48 — Poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory system, T49 — Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs, +1 more.

Each of these codes carries a Code First note naming this condition — when that code is reported, THIS code is sequenced first, ahead of it.

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

Not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity.

Named in the grouper logic of 3 MS-DRGs: DRG 698 (MDC 11), DRG 699 (MDC 11), DRG 700 (MDC 11).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):INJ030 — Drug induced or toxic related condition (default); GEN001 — Nephritis; nephrosis; renal sclerosis.

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical categories (Drug induced or toxic related condition, Nephritis; nephrosis; renal sclerosis).

N07.5 — Hereditary nephropathy, not elsewhere classified with diffuse mesangiocapillary glomerulonephritis, N07.6 — Hereditary nephropathy, not elsewhere classified with dense deposit disease, N07.7 — Hereditary nephropathy, not elsewhere classified with diffuse crescentic glomerulonephritis, N07.8 — Hereditary nephropathy, not elsewhere classified with other morphologic lesions, N07.9 — Hereditary nephropathy, not elsewhere classified with unspecified morphologic lesions, N07.A — Hereditary nephropathy, not elsewhere classified with C3 glomerulonephritis, N07.B — Hereditary nephropathy, not elsewhere classified with APOL1-mediated kidney disease [AMKD], N08 — Glomerular disorders in diseases classified elsewhere, N14.0 — Analgesic nephropathy, N14.1 — Nephropathy induced by other drugs, medicaments and biological substances, N14.19 — Nephropathy induced by other drugs, medicaments and biological substances, N14.2 — Nephropathy induced by unspecified drug, medicament or biological substance, N14.3 — Nephropathy induced by heavy metals, N14.4 — Toxic nephropathy, not elsewhere classified, N15.0 — Balkan nephropathy, N15.8 — Other specified renal tubulo-interstitial diseases, N15.9 — Renal tubulo-interstitial disease, unspecified, N16 — Renal tubulo-interstitial disorders in diseases classified elsewhere, N26.9 — Renal sclerosis, unspecified, N46.021 — Azoospermia due to drug therapy, +353 more

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main term “Nephropathy”; these codes share that main term but sit in a different category of the Tabular List.

N07.0 — Hereditary nephropathy, not elsewhere classified with minor glomerular abnormality (hereditary NEC, with, minor glomerular abnormality), N07.1 — Hereditary nephropathy, not elsewhere classified with focal and segmental glomerular lesions (hereditary NEC, with, focal and segmental glomerular lesions), N07.2 — Hereditary nephropathy, not elsewhere classified with diffuse membranous glomerulonephritis (hereditary NEC, with, diffuse, membranous glomerulonephritis), N07.3 — Hereditary nephropathy, not elsewhere classified with diffuse mesangial proliferative glomerulonephritis (hereditary NEC, with, diffuse, mesangial proliferative glomerulonephritis), N07.4 — Hereditary nephropathy, not elsewhere classified with diffuse endocapillary proliferative glomerulonephritis (hereditary NEC, with, diffuse, endocapillary proliferative glomerulonephritis), N07.5 — Hereditary nephropathy, not elsewhere classified with diffuse mesangiocapillary glomerulonephritis (hereditary NEC, with, diffuse, mesangiocapillary glomerulonephritis), N07.6 — Hereditary nephropathy, not elsewhere classified with dense deposit disease (hereditary NEC, with, dense deposit disease), N07.7 — Hereditary nephropathy, not elsewhere classified with diffuse crescentic glomerulonephritis (hereditary NEC, with, diffuse, crescentic glomerulonephritis), N07.8 — Hereditary nephropathy, not elsewhere classified with other morphologic lesions (hereditary NEC, with, specified morphological changes NEC), N07.9 — Hereditary nephropathy, not elsewhere classified with unspecified morphologic lesions (hereditary NEC), N07.A — Hereditary nephropathy, not elsewhere classified with C3 glomerulonephritis (hereditary NEC, with, C3, glomerulopathy), N07.B — Hereditary nephropathy, not elsewhere classified with APOL1-mediated kidney disease [AMKD] (hereditary NEC, with, APOL1-mediated kidney disease), N13.8 — Other obstructive and reflux uropathy (obstructive), N15.0 — Balkan nephropathy (Balkan), N17.0 — Acute kidney failure with tubular necrosis (vasomotor), N17.2 — Acute kidney failure with medullary necrosis (phenacetin), N25.0 — Renal osteodystrophy (phosphate-losing), N25.89 — Other disorders resulting from impaired renal tubular function (hypokalemic), N28.9 — Disorder of kidney and ureter, unspecified, O26.83 — Pregnancy related renal disease (pregnancy-related), +19 more

Lab tests where this diagnosis supports Medicare coverage (NCD)

Medicare's National Coverage Determination (NCD) program lists this diagnosis as medical justification for these lab tests.

Gamma-glutamyl Transferase (GGT) Test

Contextual Map

Every relationship of N14.11 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run N14.11 with these 12 related codes in Claim Check

Hierarchy

• N00-N99 — Chapter 14: Diseases of the Genitourinary System (N00-N99) (N00-N99)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• N10-N16 — Renal tubulo-interstitial diseases[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Excludes2

• N17 — Acute kidney failure[Excludes2]: “acute kidney failure (N17.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Referenced by Excludes2 notes

• N17 — Acute kidney failure[Excludes2](via N14.-): “drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• N17-N19 — Acute kidney failure and chronic kidney disease (N17-N19)[Excludes2](via N14.-): “drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• N18 — Chronic kidney disease (CKD)[Excludes2](via N14.-): “drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• N19 — Unspecified kidney failure[Excludes2](via N14.-): “drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Referenced by Code First instructions (21)

• T36 — Poisoning by, adverse effect of and underdosing of systemic antibiotics[Code First]: “nephropathy (N14.0-N14.2)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• T36-T39 — Antibiotics & Anti-infectives (T36-T39)[Code First]: “nephropathy (N14.0-N14.2)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• T36-T50 — Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)[Code First]: “nephropathy (N14.0-N14.2)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• T37 — Poisoning by, adverse effect of and underdosing of other systemic anti-infectives and antiparasitics[Code First]: “nephropathy (N14.0-N14.2)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• T38 — Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified[Code First]: “nephropathy (N14.0-N14.2)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• T39 — Poisoning by, adverse effect of and underdosing of nonopioid analgesics, antipyretics and antirheumatics[Code First]: “nephropathy (N14.0-N14.2)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• T40 — Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens][Code First]: “nephropathy (N14.0-N14.2)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• T40-T41 — Analgesics & Antipyretics (T40-T41)[Code First]: “nephropathy (N14.0-N14.2)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• and 13 more

Clinical classification (CCSR)

• INJ030 — Drug induced or toxic related condition[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)
• GEN001 — Nephritis; nephrosis; renal sclerosis[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)

MS-DRG Grouper

• DRG 698 — OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITH MCC[MS-DRG]: “OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITH MCC (MDC 11)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 699 — OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITH CC[MS-DRG]: “OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITH CC (MDC 11)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 700 — OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITHOUT CC/MCC[MS-DRG]: “OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITHOUT CC/MCC (MDC 11)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026

MDC crossing

• MDC 11 — Diseases and Disorders of the Kidney and Urinary Tract[MDC crossing]: “Diseases and Disorders of the Kidney and Urinary Tract — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs. 3,574 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026

Index entries

• Nephropathy, contrast medium, radiography[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Nephropathy, contrast-induced[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Nephropathy, drug-induced, contrast-induced[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes

• N14 — Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• N14.0 — Analgesic nephropathy[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• N14.1 — Nephropathy induced by other drugs, medicaments and biological substances[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• N14.19 — Nephropathy induced by other drugs, medicaments and biological substances[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• N14.2 — Nephropathy induced by unspecified drug, medicament or biological substance[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• N14.3 — Nephropathy induced by heavy metals[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• N14.4 — Toxic nephropathy, not elsewhere classified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Change history

• FY2023 — Added to the code set[Change history]— CMS release files (code change ledger) · icd10cm-fy2023

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data

CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page

Claim edits Official source data

CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page

Inpatient payment groups Official source data

CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43 Release, file and checksum · Publisher’s page

Change history and date-of-service validity Official source data

CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page

Comparisons, relationships and the contextual map MedCoder structured relationship

Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears

Summary and FAQ answers MedCoder explanation

Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Nearest Codes in This Family

Official ICD-10-CM classifications closest to N14.11 in its code family, with their registry titles.

• N14 — Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions
• N14.0 — Analgesic nephropathy
• N14.1 — Nephropathy induced by other drugs, medicaments and biological substances
• N14.19 — Nephropathy induced by other drugs, medicaments and biological substances
• N14.2 — Nephropathy induced by unspecified drug, medicament or biological substance
• N14.3 — Nephropathy induced by heavy metals
• N14.4 — Toxic nephropathy, not elsewhere classified

View all codes in the N14 family