ICD-10-CM 2027 diagnosis code
N07.BHereditary nephropathy, not elsewhere classified with APOL1-mediated kidney disease [AMKD]
N07.B is a valid, billable ICD-10-CM code for hereditary nephropathy, not elsewhere classified with apol1-mediated kidney disease [amkd]. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Hereditary nephrop, NEC with APOL1-mediated kidney disease
Looking up by condition? See ICD-10 code for AMKD.
Code last changed in FY2026 (effective October 1, 2025). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About N07.B
N07.B is the ICD-10-CM diagnosis code for hereditary nephropathy, not elsewhere classified with APOL1-mediated kidney disease [AMKD]. It belongs to category N07 (hereditary nephropathy, not elsewhere classified), block N00-N08 (glomerular diseases) and chapter 14 (diseases of the genitourinary system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within N07 (hereditary nephropathy, not elsewhere classified), N07.B is specifically for hereditary nephropathy, not elsewhere classified with APOL1-mediated kidney disease [AMKD]. Related codes cover with minor glomerular abnormality (N07.0), with focal and segmental glomerular lesions (N07.1), with diffuse membranous glomerulonephritis (N07.2), with diffuse mesangial proliferative glomerulonephritis (N07.3), with diffuse endocapillary proliferative glomerulonephritis (N07.4), with diffuse mesangiocapillary glomerulonephritis (N07.5), with dense deposit disease (N07.6), with diffuse crescentic glomerulonephritis (N07.7) and 3 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 698 (Other Kidney and Urinary Tract Diagnoses with MCC, relative weight 1.6398), DRG 699 (Other Kidney and Urinary Tract Diagnoses with CC, relative weight 1.0003) and DRG 700 (Other Kidney and Urinary Tract Diagnoses without CC/MCC, relative weight 0.6741), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It was added in FY2026, effective October 1, 2025.
Coding notes
- AMKD (with glomerulonephritis)
- AMKD (with glomerulosclerosis)
Notes that apply from higher levels
Instructions written at a parent level also apply to N07.B.
Broader instructions also apply from N00-N08 Glomerular diseases and Chapter 14: Diseases of the genitourinary system.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to N07.B.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 11 · Diseases and Disorders of the Kidney and Urinary Tract
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2026 (effective 10/1/2025): Added
- No changes since FY2026.
Common questions about N07.B
Is N07.B billable?
- Yes. N07.B is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N07.B be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N07.B as a principal diagnosis.
Is N07.B a CC or MCC?
- No. N07.B is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does N07.B group to?
- N07.B is used in the MS-DRG v44.0 logic for MS-DRG 698 (Other Kidney and Urinary Tract Diagnoses with MCC), MS-DRG 699 (Other Kidney and Urinary Tract Diagnoses with CC) and MS-DRG 700 (Other Kidney and Urinary Tract Diagnoses without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.