ICD-10-CM 2027
ICD-10 code for Pseudopolyarthritis
From the official ICD-10-CM alphabetic index entry “Pseudopolyarthritis, rhizomelic”. Page updated September 29, 2026.
About coding Pseudopolyarthritis
The ICD-10-CM code for Pseudopolyarthritis is M35.3 (Polymyalgia rheumatica).
Within M35 (other systemic involvement of connective tissue), M35.3 is specifically for polymyalgia rheumatica. Related codes cover Sjogren syndrome (M35.0), other overlap syndromes (M35.1), Behcet's disease (M35.2), diffuse (eosinophilic) fasciitis (M35.4), multifocal fibrosclerosis (M35.5), relapsing panniculitis [Weber-Christian] (M35.6), hypermobility syndrome (M35.7), other specified systemic involvement of connective tissue (M35.8) and 1 more.
Don't report M35.3 together with the conditions in its Excludes1 note: polymyalgia rheumatica with giant cell arteritis (M31.5).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for M35.3)
- polymyalgia rheumatica with giant cell arteritis (M31.5)
Common questions about Pseudopolyarthritis ICD-10 codes
What is the ICD-10 code for Pseudopolyarthritis?
- M35.3 — Polymyalgia rheumatica.
Is M35.3 billable?
- Yes. M35.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M35.3 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M35.3 as a principal diagnosis.
Is M35.3 a CC or MCC?
- No. M35.3 is neither a CC nor an MCC under MS-DRG v44.0.