Sjögren syndrome with documented glomerular disease as a systemic manifestation — a specific subset of M35.0 reserved for cases where renal glomerular involvement is clinically established.

Verified May 8, 2026 · 6 sources ↓

Status: Billable
Chapter: 13
Related CPT: 0
Region: Other

Drawn from CDCICD10DataAAPCSjogrensThe-rheumatologist

Documentation tips

What should appear in the chart to support M35.0A.

Source · Editorial brief grounded in 6 cited references ↓

Provider must explicitly document glomerular disease (e.g., glomerulonephritis, nephrotic syndrome with glomerular pattern) — tubulo-interstitial nephropathy maps to M35.04, not M35.0A.
Record the basis for Sjögren syndrome diagnosis: positive anti-SSA/SSB antibodies, salivary gland biopsy findings, or prior confirmed diagnosis by a rheumatologist.
If renal biopsy was performed, document the histopathologic pattern (membranous, mesangial, etc.) to support medical necessity and specificity of M35.0A over unspecified renal involvement.
When multiple systemic manifestations are present, document each organ system involvement separately so all applicable M35.0x codes can be reported — the tabular structure allows stacking of specifics.
For inpatient claims, document any MCC/CC comorbidities (e.g., acute kidney injury, nephrotic syndrome) in full to support the higher-weighted DRG 545 or 546 grouping.

Common coding pitfalls

The recurring mistakes coders make with M35.0A and adjacent codes.

Source · Editorial brief grounded in CDC ICD-10-CM tabular guidance, AAOS coding references, and cited references ↓

Using M35.04 (tubulo-interstitial nephropathy) when the chart documents glomerulonephritis — these are anatomically and histologically distinct renal conditions with separate codes; defaulting to the more familiar tubulo-interstitial code is a misassignment.
Reporting the non-billable parent M35.0 or unspecified M35.00 when glomerular disease is clearly documented — payers will downcode or deny claims that lack the required specificity available in M35.0A.
Coding R68.2 (dry mouth, unspecified) alongside M35.0A — the Excludes1 annotation at M35.0 prohibits this combination.
Failing to add codes for other documented systemic manifestations (e.g., M35.06 for peripheral neuropathy) when the encounter addresses multiple Sjögren's complications — single-code reporting understates disease burden and may affect DRG weight.
Applying M35.0A based on proteinuria alone without a provider-documented diagnosis of glomerular disease — the code requires established glomerular involvement, not just a lab abnormality.

Clinical context

Source · Editorial summary grounded in 6 cited references ↓

M35.0A captures Sjögren syndrome when the autoimmune process has extended to the glomeruli of the kidney. This is distinct from M35.04 (Sjögren syndrome with tubulo-interstitial nephropathy), which targets the renal tubules and interstitium. Both codes exist under the M35.0 parent, but they are not interchangeable — glomerulonephritis and tubulo-interstitial nephritis are different pathological processes, and payers will scrutinize the distinction. Use M35.0A only when the provider has documented glomerular involvement (e.g., membranous nephropathy, mesangial nephropathy, or other glomerulonephritis pattern) in the context of confirmed Sjögren syndrome.

The parent code M35.0 is non-billable; you must report a fully specified child code. If the record documents multiple systemic manifestations — say, glomerular disease and peripheral neuropathy — report M35.0A plus M35.06. The parent code's 'Use additional code to identify associated manifestations' instruction supports this multi-code approach. The Excludes1 note at M35.0 bars coding R68.2 (dry mouth, unspecified) alongside any M35.0x code.

M35.0A was introduced as a new code effective October 1, 2021 (FY2022), part of a broader Sjögren's syndrome tabular expansion championed by the Sjögren's Foundation and the American College of Rheumatology. It groups under MS-DRG v42.0 DRGs 545–547 (Connective tissue disorders with MCC / CC / without CC/MCC), so accurate complication and comorbidity documentation directly affects inpatient reimbursement tier.

Sibling codes

Other billable codes under M35.0 (laterality / anatomic variants).

M35.09

Sjogren syndrome with other organ involvement

M35.01

Sjogren syndrome with keratoconjunctivitis

M35.00

Sjogren syndrome, unspecified

M35.0B

Sjogren syndrome with vasculitis

M35.03

Sjogren syndrome with myopathy

M35.05

Sjogren syndrome with inflammatory arthritis

M35.02

Sjogren syndrome with lung involvement

M35.0C

Sjogren syndrome with dental involvement

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 6 cited references ↓

01What is the difference between M35.0A and M35.04?

M35.04 codes Sjögren syndrome with tubulo-interstitial nephropathy, which affects the renal tubules and interstitium. M35.0A is reserved for glomerular disease — a distinct pathological process involving the glomeruli. Assign based on what the provider and/or pathology report specifically document.

02Can I report M35.0A with other M35.0x codes for the same patient?

Yes. The M35.0 parent carries a 'Use additional code to identify associated manifestations' instruction. If a patient has both glomerular disease and, say, peripheral nervous system involvement, report M35.0A and M35.06 together.

03Is M35.0A valid for outpatient claims?

Yes. M35.0A is a fully billable, specific code valid for any care setting — office, outpatient facility, or inpatient. DRG groupings (545–547) only apply to inpatient hospital claims.

04When did M35.0A become effective?

M35.0A was a new code effective October 1, 2021 (FY2022 ICD-10-CM). It remains valid and unchanged through FY2026 (effective October 1, 2025).

05Can I code R68.2 (dry mouth) alongside M35.0A?

No. An Excludes1 note at the M35.0 category bars R68.2 from being reported with any M35.0x code. Dry mouth in the context of Sjögren syndrome is captured by the syndrome code itself.

06What documentation supports M35.0A versus falling back to M35.00?

A provider diagnosis of glomerular disease — backed by renal biopsy histopathology, nephrology documentation specifying a glomerulonephritis pattern, or equivalent clinical evidence — is required. Proteinuria or abnormal creatinine alone does not establish M35.0A without a provider's explicit glomerular diagnosis.

07Which DRGs does M35.0A group to on inpatient claims?

Under MS-DRG v42.0, M35.0A groups to DRG 545 (Connective tissue disorders with MCC), 546 (with CC), or 547 (without CC/MCC), depending on documented comorbidities and complications.

Sources & references

Editorial content was developed using the following public sources. Last verified May 8, 2026.

Mira AI Scribe

Mira AI Scribe captures the provider's documented confirmation of glomerular disease in the context of Sjögren syndrome — including renal biopsy histopathology, nephrology consultation notes specifying glomerulonephritis pattern, and labs supporting glomerular dysfunction (proteinuria, hematuria, reduced GFR). This prevents downfall to nonspecific M35.00 or misassignment to M35.04, either of which can trigger medical necessity denials or DRG downgrades on inpatient claims.

See how Mira captures M35.0A documentation