ICD-10-CM 2027
ICD-10 code for Trigger finger
From the official ICD-10-CM alphabetic index entry “Trigger finger (acquired)”. Page updated September 29, 2026.
About coding Trigger finger
The ICD-10-CM code for Trigger finger is M65.30 (Trigger finger, unspecified finger). The official index lists 6 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M65.30.
Within M65.3, choose M65.30 (unspecified finger) only when documentation doesn't support a more specific option: thumb (M65.31), index finger (M65.32), middle finger (M65.33), ring finger (M65.34) and little finger (M65.35).
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 557 (Tendonitis, Myositis and Bursitis with MCC, relative weight 1.489) and DRG 558 (Tendonitis, Myositis and Bursitis without MCC, relative weight 0.8875), 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 Trigger finger codes (official index)
- congenital Q74.0 — Other congenital malformations of upper limb(s), including shoulder girdle
- index finger M65.32 — Trigger finger, index finger
- little finger M65.35 — Trigger finger, little finger
- middle finger M65.33 — Trigger finger, middle finger
- ring finger M65.34 — Trigger finger, ring finger
- thumb M65.31 — Trigger thumb
Common questions about Trigger finger ICD-10 codes
What is the ICD-10 code for Trigger finger?
- M65.30 — Trigger finger, unspecified finger. More specific codes apply when the documentation supports them: Q74.0, M65.32, M65.35, M65.33 and others below.
What is the ICD-10 code for congenital trigger finger?
- Q74.0 — Other congenital malformations of upper limb(s), including shoulder girdle.
What is the ICD-10 code for index finger trigger finger?
- M65.32 — Trigger finger, index finger (header code; choose a more specific subcode).
What is the ICD-10 code for little finger trigger finger?
- M65.35 — Trigger finger, little finger (header code; choose a more specific subcode).
What is the ICD-10 code for middle finger trigger finger?
- M65.33 — Trigger finger, middle finger (header code; choose a more specific subcode).
What is the ICD-10 code for ring finger trigger finger?
- M65.34 — Trigger finger, ring finger (header code; choose a more specific subcode).
What is the ICD-10 code for thumb trigger finger?
- M65.31 — Trigger thumb (header code; choose a more specific subcode).
Is M65.30 billable?
- Yes. M65.30 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M65.30 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M65.30 as a principal diagnosis.
Is M65.30 a CC or MCC?
- No. M65.30 is neither a CC nor an MCC under MS-DRG v44.0.