N04.22
Billable codeSecondary membranous nephropathy with nephrotic syndrome
The ICD-10 code for secondary membranous nephropathy with nephrotic syndrome is N04.22.
Clinical notes
Code first
This code represents a manifestation of an underlying disease. Coding convention requires the underlying (etiology) code to be sequenced first, with this code listed second.
- , if applicable, other disease or disorder or poisoning causing membranous nephropathy
Use additional code
This code represents an underlying condition. When a related manifestation is also present, coding convention calls for an additional code to be listed after this one.
- code, if applicable, for adverse effect of drug causing membranous nephropathy
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code represents a manifestation. Documentation should identify the underlying condition, which must be coded first.
- •If the associated manifestation or related condition noted above is also documented, an additional code should be reported alongside this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- N04.20Nephrotic syndrome with diffuse membranous glomerulonephritis, unspecified
- N04.21Primary membranous nephropathy with nephrotic syndrome
- N04.29Other nephrotic syndrome with diffuse membranous glomerulonephritis
- N04.22Secondary membranous nephropathy with nephrotic syndrome
Associated MS-DRGs
N04.22 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.