ICD-10-CM N28.84 is the diagnosis code for Pyelitis cystica. This code falls under the section "Other disorders of kidney and ureter" 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.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where N28.84 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, N28.84 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
N28.84 is the ICD-10-CM diagnosis code for "Pyelitis cystica". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of N28.84 is N28.8 ("Other specified disorders of kidney and ureter"). N28.84 provides a more specific classification within this category.
N28.84 is located in Section N25-N29 — "Other disorders of kidney and ureter" within Chapter 14 of the ICD-10-CM Tabular List.
Use N28.84 when the patients documented diagnosis matches "Pyelitis cystica" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Pyelitis cystica is N28.84.
Yes, N28.84 can be used as a primary diagnosis code since it is billable and specific.
N28.84 is in Chapter 14 of the ICD-10-CM Tabular List.
Yes, N28.84 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.