2027 ICD-10-CM Diagnosis Code N25.0Renal osteodystrophy
ICD-10-CM Codes›N00–N99›N25-N29›N25
- Billable — Valid for Submission
- Chronic Condition
N25.0 is a billable ICD-10-CM diagnosis code for renal osteodystrophy. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 698 through 700. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified diseases of kidney and ureters.
N25.0 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model. It still risk-adjusts in the RxHCC Part D (V08) category 87 for payment year 2027.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
N25.0 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model, but it maps to payment categories in the other CMS models shown below.
Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Bone turnover rate decreased
- Bone turnover rate increased
- Chronic kidney disease mineral and bone disorder
- Hyperparathyroidism due to renal insufficiency
- Mixed renal osteodystrophy
- Normal bone turnover rate
- Phosphate-losing tubular disorders
- Renal dwarfism
- Renal osteodystrophy
- Renal osteodystrophy due to hyperparathyroidism
- Renal osteodystrophy with high bone turnover
- Renal osteodystrophy with low bone turnover
- Renal osteodystrophy with normal bone turnover
- Renal secondary osteodystrophia fibrosa
- Sagliker syndrome
- Secondary hyperparathyroidism
- Uremic secondary hyperparathyroidism
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to N25.0: its own notes plus those printed at block N25-N29 and Chapter 14. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Azotemic osteodystrophy
- Phosphate-losing tubular disorders
- Renal rickets
- Renal short stature
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name N25.0, its category, or a range that includes it.
Excludes1 4
These codes carry an Excludes1 note naming N25.0: they are not reported together with it, unless the two conditions are unrelated.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disease, diseased See Also: Syndrome;
renal (functional) (pelvis) See Also: Disease, kidney; N28.9
Disorder (of) See Also: Disease;
phosphate-losing tubular N25.0
Infancy, infantile, infantilism See Also: condition;
renal N25.0
Nephropathy See Also: Nephritis; N28.9
phosphate-losing N25.0
Osteopathy See Also: Osteomyelitis, Osteonecrosis, Osteoporosis;
renal fibrocystic N25.0
Pseudorickets (renal) N25.0
Rachitis, rachitism (acute) (tarda) See Also: Rickets;
renalis N25.0
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Renal Osteodystrophy
abnormalities of bone mineral metabolism associated with chronic kidney disease.
Patient EducationClinical
Bone Diseases
Your bones help you move, give you shape and support your body. They are living tissues that rebuild constantly throughout your life. During childhood and your teens, your body adds new bone faster than it removes old bone. After about age 20, you can lose bone faster than you make bone.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert N25.0 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About N25.0Overview
What is the ICD-10 code for renal osteodystrophy?
The ICD-10-CM code for renal osteodystrophy is N25.0 (sometimes written as N250). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is N25.0 (Disorders resulting from impaired renal tubular function) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report renal osteodystrophy on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does N25.0 group to?
When renal osteodystrophy is the principal diagnosis on an inpatient stay, it groups to MS-DRG 699, 698, 700, with relative weights from 0.6740 to 1.6400 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of N25.0?
Under the General Equivalence Mappings, renal osteodystrophy converts to ICD-9-CM 588.0 (renal osteodystrophy). The mapping is a direct match.
Does N25.0 risk-adjust for Medicare Advantage payment?
Not for Medicare Advantage: N25.0 maps to no category in the CMS-HCC V28 model. It still risk-adjusts in the RxHCC Part D (V08) category 87 (Osteoporosis, Vertebral and Pathological Fractures).
