Billable / Specific Code
ICD-10-CM N25.81 is the diagnosis code for Secondary hyperparathyroidism of renal origin. This code falls under the section "Other disorders of kidney and ureter" within Chapter 14 â 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.
The following conditions should never be coded at the same time as N25.81. They are mutually exclusive:
The following conditions are not included in N25.81. If the patient has both, code each condition separately:
Understanding where N25.81 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, N25.81 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
N25.81 is the ICD-10-CM diagnosis code for "Secondary hyperparathyroidism of renal origin". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of N25.81 is N25.8 ("Other disorders resulting from impaired renal tubular function"). N25.81 provides a more specific classification within this category.
N25.81 is located in Section N25-N29 â "Other disorders of kidney and ureter" within Chapter 14 of the ICD-10-CM Tabular List.
Use N25.81 when the patients documented diagnosis matches "Secondary hyperparathyroidism of renal origin" 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 Secondary hyperparathyroidism of renal origin is N25.81.
Yes, N25.81 can be used as a primary diagnosis code since it is billable and specific.
N25.81 is in Chapter 14 of the ICD-10-CM Tabular List.
Type 1 Excludes for N25.81 include: secondary hyperparathyroidism, non-renal (E21.1).
Yes, N25.81 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.