Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Risk Adjustment (CMS-HCC)

Payment categories this diagnosis maps to under CMS-HCC V28, payment year 2026.

HCC 94 — Systemic Lupus Erythematosus and Other Specified Systemic Connective Tissue Disorders

Other models: CMS-HCC V22 HCC 40 · RxHCC V08 HCC 84

Risk scores depend on the enrollee's full accepted diagnosis set and segment; a category mapping alone does not determine payment.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Tubulo-interstitial nephropathy in systemic lupus erythematosus is a billable ICD-10-CM diagnosis code (M32.15).

Sequencing, inclusion, and exclusion notes published for M32.15 in the official ICD-10-CM tabular list.

Conditions the official ICD-10-CM tabular list includes under this code.

Conditions that can never be reported with this code; the two are mutually exclusive.

lupus erythematosus (discoid) (NOS) (L93.0)
autoimmune disease, single organ or single cell-type -code to relevant condition category

Official ICD-10-CM classifications closest to M32.15 in its code family, with their registry titles.

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

Disorder (of), tubulo-interstitial (in), systemic lupus erythematosus
Lupus, erythematosus (discoid) (local), systemic, with organ or system involvement, renal (glomerular), tubulo-interstitial