ICD-10-CM 2027
ICD-10 code for Chondritis
From the official ICD-10-CM alphabetic index entry “Chondritis”. Page updated September 29, 2026.
About coding Chondritis
The ICD-10-CM code for Chondritis is M94.8X9 (Other specified disorders of cartilage, unspecified sites). The official index lists 7 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M94.8X9.
Within M94.8X, choose M94.8X9 (unspecified sites) only when documentation doesn't support a more specific option: multiple sites (M94.8X0), shoulder (M94.8X1), upper arm (M94.8X2), forearm (M94.8X3), hand (M94.8X4), thigh (M94.8X5), lower leg (M94.8X6), ankle and foot (M94.8X7) and 1 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 564 (Other Musculoskeletal System and Connective Tissue Diagnoses with MCC, relative weight 1.4908), DRG 565 (Other Musculoskeletal System and Connective Tissue Diagnoses with CC, relative weight 0.9783) and DRG 566 (Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC, relative weight 0.7378), 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.
More specific Chondritis codes (official index)
- auricle H61.03 — Chondritis of external ear
- costal (Tietze's) M94.0 — Chondrocostal junction syndrome [Tietze]
- external ear H61.03 — Chondritis of external ear
- patella, posttraumatic
- pinna H61.03 — Chondritis of external ear
- purulent M94.8X — Other specified disorders of cartilage
- tuberculous NEC A18.02 — Tuberculous arthritis of other joints
- intervertebral A18.01 — Tuberculosis of spine
Common questions about Chondritis ICD-10 codes
What is the ICD-10 code for Chondritis?
- M94.8X9 — Other specified disorders of cartilage, unspecified sites. More specific codes apply when the documentation supports them: H61.03, M94.0, H61.03, H61.03 and others below.
What is the ICD-10 code for auricle chondritis?
- H61.03 — Chondritis of external ear (header code; choose a more specific subcode).
What is the ICD-10 code for costal chondritis?
- M94.0 — Chondrocostal junction syndrome [Tietze].
What is the ICD-10 code for external ear chondritis?
- H61.03 — Chondritis of external ear (header code; choose a more specific subcode).
What is the ICD-10 code for pinna chondritis?
- H61.03 — Chondritis of external ear (header code; choose a more specific subcode).
What is the ICD-10 code for purulent chondritis?
- M94.8X — Other specified disorders of cartilage (header code; choose a more specific subcode).
What is the ICD-10 code for tuberculous nec chondritis?
- A18.02 — Tuberculous arthritis of other joints.
Is M94.8X9 billable?
- Yes. M94.8X9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M94.8X9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M94.8X9 as a principal diagnosis.
Is M94.8X9 a CC or MCC?
- No. M94.8X9 is neither a CC nor an MCC under MS-DRG v44.0.