N16
Billable

Renal tubulo-interstitial disorders in diseases classified elsewhere

Billable / Specific Code

What is Renal tubulo-interstitial disorders in diseases classified elsewhere?

ICD-10-CM N16 is the diagnosis code for Renal tubulo-interstitial disorders in diseases classified elsewhere. This code falls under the section "Renal tubulo-interstitial diseases" within Chapter 14 — Diseases of the genitourinary system (N00-N99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

💡 Inclusions
⛔ Excludes1

Coding Guidelines for N16

✅ This Code Includes

  • Pyelonephritis
  • Tubulo-interstitial nephritis

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as N16. They are mutually exclusive:

  • diphtheritic pyelonephritis and tubulo-interstitial nephritis (A36.84)
  • pyelonephritis and tubulo-interstitial nephritis in candidiasis (B37.49)
  • pyelonephritis and tubulo-interstitial nephritis in cystinosis (E72.04)
  • pyelonephritis and tubulo-interstitial nephritis in salmonella infection (A02.25)
  • pyelonephritis and tubulo-interstitial nephritis in sarcoidosis (D86.84)
  • pyelonephritis and tubulo-interstitial nephritis in Sjogren syndrome (M35.04)
  • pyelonephritis and tubulo-interstitial nephritis in systemic lupus erythematosus (M32.15)
  • pyelonephritis and tubulo-interstitial nephritis in toxoplasmosis (B58.83)
  • renal tubular degeneration in diabetes (E08-E13 with .29)
  • syphilitic pyelonephritis and tubulo-interstitial nephritis (A52.75)

ICD-10-CM Code Hierarchy

Understanding where N16 sits in the ICD-10-CM classification helps ensure proper coding:

Current CodeN16 — Renal tubulo-interstitial disorders in diseases classified elsewhere
Related Codes

Frequently Asked Questions

Is N16 a billable ICD-10-CM code?

Yes, N16 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What does N16 mean?

N16 is the ICD-10-CM diagnosis code for "Renal tubulo-interstitial disorders in diseases classified elsewhere". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is N16 in?

N16 is located in Section N10-N16 — "Renal tubulo-interstitial diseases" within Chapter 14 of the ICD-10-CM Tabular List.

When should I use N16?

Use N16 when the patients documented diagnosis matches "Renal tubulo-interstitial disorders in diseases classified elsewhere" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Renal tubulo-interstitial disorders in diseases classified elsewhere?

The ICD-10-CM code for Renal tubulo-interstitial disorders in diseases classified elsewhere is N16.

Can N16 be used for primary diagnosis?

Yes, N16 can be used as a primary diagnosis code since it is billable and specific.

What chapter is N16 in?

N16 is in Chapter 14 of the ICD-10-CM Tabular List.

What conditions are excluded from N16?

Type 1 Excludes for N16 include: diphtheritic pyelonephritis and tubulo-interstitial nephritis (A36.84); pyelonephritis and tubulo-interstitial nephritis in candidiasis (B37.49); pyelonephritis and tubulo-interstitial nephritis in cystinosis (E72.04) and more.

Is N16 valid for 2026?

Yes, N16 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousN15.9Renal tubulo-interstitial disease, unspecifiedNext →N17Acute kidney failure
Code Details
N16
Renal tubulo-interstitial disorders in diseases classified elsewhere
Billable / Specific Code
14 — Diseases of the genitourinary system (N00-N99)
N10-N16 — Renal tubulo-interstitial diseases
2026 ICD-10-CM