ICD-10-CM · By region
Hand ICD-10 codes
21 ICD-10-CM diagnoses for hand. Each page has clinical context, documentation tips, common coding pitfalls, and the CPT procedures commonly billed alongside.
- Diagnoses
- 21
- Blocks
- 3
- CPT links
- 174
21 diagnoses (most-specific first)
- M18.10
Primary degenerative osteoarthritis of the first carpometacarpal (CMC) joint affecting one hand, with the specific side (right or left) not documented in the medical record.
M15-M197 CPT - M18.11
M18.11 identifies degenerative joint disease affecting the right first carpometacarpal (CMC) joint — the basal thumb joint — arising from primary (idiopathic) wear rather than a secondary cause such as trauma or inflammatory arthritis.
M15-M198 CPT - M18.12
Primary (degenerative) osteoarthritis isolated to the first carpometacarpal joint of the left hand, with no traumatic or secondary etiology documented.
M15-M196 CPT - M18.30
Post-traumatic osteoarthritis affecting the first carpometacarpal (CMC) joint on one side, where the specific hand (right or left) is not documented in the clinical record.
M15-M1910 CPT - M18.31
Post-traumatic osteoarthritis of the first carpometacarpal (CMC) joint of the right hand, arising unilaterally as a sequela of prior trauma to the thumb base.
M15-M1910 CPT - M18.32
Post-traumatic osteoarthritis localized to the left first carpometacarpal (CMC) joint, occurring as a unilateral condition attributable to prior trauma rather than primary degeneration.
M15-M196 CPT - M18.50
Unilateral secondary osteoarthritis of the first carpometacarpal (CMC) joint arising from a cause other than post-traumatic injury or primary degeneration, affecting one hand when laterality is not specified in the documentation.
M15-M199 CPT - M18.51
M18.51 identifies other unilateral secondary osteoarthritis of the first carpometacarpal (CMC) joint of the right hand — meaning CMC joint OA caused by a secondary process other than trauma.
M15-M198 CPT - M18.52
Secondary osteoarthritis of the left thumb carpometacarpal (CMC) joint arising from a cause other than post-traumatic origin — classified as unilateral, affecting the left hand only.
M15-M1911 CPT - M65.30
M65.30 classifies stenosing tenosynovitis (trigger finger) of a digit that is not identified by name or laterality in the clinical documentation. Use it only when the specific finger and side are genuinely undocumented.
M65-M6710 CPT - M70.10
Bursal inflammation of the hand without documented laterality — used when the provider has not specified right or left side in the clinical record.
M70-M797 CPT - M70.11
Bursitis localized to the right hand, classified under soft tissue disorders related to use, overuse, and pressure (M70 category).
M70-M799 CPT - M70.12
Inflammation of one or more bursae in the left hand, classified under soft tissue disorders related to use, overuse, and pressure.
M70-M795 CPT - M15.1
Osteoarthritis of the distal interphalangeal joints of the fingers, presenting as bony enlargements (Heberden's nodes) with associated joint pathology.
M15-M1912 CPT - M15.2
Osteoarthritis of the proximal interphalangeal (PIP) joints of the hand, presenting with characteristic bony enlargements and associated joint degeneration.
M15-M1910 CPT - M18.0
M18.0 identifies degenerative joint disease of the first carpometacarpal (CMC) joint — the thumb basal joint — affecting both hands, with no traumatic or secondary cause documented.
M15-M1910 CPT - M18.2
Post-traumatic osteoarthritis affecting the first carpometacarpal (CMC1) joint on both the right and left hands, where prior injury is the documented cause of joint degeneration.
M15-M198 CPT - M18.4
Degenerative joint disease of both thumb basal joints (the first carpometacarpal joints, bilaterally) caused by a secondary etiology other than post-traumatic injury — such as inflammatory arthritis, crystal deposition, or metabolic joint disease.
M15-M197 CPT - M18.9
Degenerative joint disease of the first carpometacarpal (CMC) joint — the basal thumb joint where the first metacarpal articulates with the trapezium — without specification of laterality, etiology (primary vs. secondary), or whether one or both sides are affected.
M15-M196 CPT - M72.0
Fibroblastic proliferation of the palmar fascia causing nodule formation, cord development, and progressive flexion contracture of one or more fingers — the defining features of Dupuytren's disease.
M70-M799 CPT - M72.1
M72.1 captures fibroblastic thickening of the skin overlying the dorsal interphalangeal or metacarpophalangeal joints — the fibrous plaques clinically known as knuckle pads or Garrod's pads.
M70-M796 CPT