ICD-10 code for midline lethal granuloma

The ICD-10-CM code for midline lethal granuloma is M31.2 (Lethal midline granuloma).

Within M31 (other necrotizing vasculopathies), M31.2 is specifically for Lethal midline granuloma. Related codes cover hypersensitivity angiitis (M31.0), thrombotic microangiopathy (M31.1), Wegener's granulomatosis (M31.3), aortic arch syndrome [Takayasu] (M31.4), giant cell arteritis with polymyalgia rheumatica (M31.5), other giant cell arteritis (M31.6), microscopic polyangiitis (M31.7), other specified necrotizing vasculopathies (M31.8) and 1 more.

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 542 (Pathological Fractures and Musculoskeletal and Connective Tissue Malignancy with MCC, relative weight 1.7211), DRG 543 (Pathological Fractures and Musculoskeletal and Connective Tissue Malignancy with CC, relative weight 1.006) and DRG 544 (Pathological Fractures and Musculoskeletal and Connective Tissue Malignancy without CC/MCC, relative weight 0.7406), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.