Introduction to Occupational Therapy (OT) ICD 10 Codes
Occupational therapy (OT) empowers individuals of all ages to achieve greater independence and quality of life by helping them improve or adapt the skills necessary for daily living. OT is used to support patients recovering from injuries, surgeries, or chronic conditions that impact fine motor function, cognition, coordination, or sensory processing. Accurate ICD-10 coding plays a vital role in justifying occupational therapy services, streamlining documentation, enhancing reimbursement, and supporting treatment plans.
This comprehensive guide lists the most frequently used ICD-10 codes in occupational therapy. Whether you focus on pediatrics, geriatrics, neurological rehabilitation, hand therapy, mental health, or post-surgical recovery, these codes will assist in charting, billing, and tracking outcomes.
DocVilla offers an all-in-one, cloud-based EHR tailored for occupational therapy. It includes customizable SOAP templates, automated coding suggestions, integrated billing, e-prescribing, appointment scheduling, and patient engagement features—all designed to optimize OT practice workflows.
General Occupational Therapy-Related Conditions
- R27.9 — Unspecified lack of coordination
- M62.81 — Muscle weakness (generalized)
- R53.83 — Other fatigue
- Z13.850 — Encounter for screening for muscle wasting and atrophy
- R26.89 — Other abnormalities of gait and mobility
- R26.2 — Difficulty in walking, not elsewhere classified
- R29.6 — Repeated falls
- Z91.81 — History of falling
- Z74.09 — Other reduced mobility
- Z74.3 — Need for continuous supervision
Neurological and Stroke-Related Conditions
- I69.351 — Hemiplegia following cerebral infarction affecting right dominant side
- I69.352 — Hemiplegia following cerebral infarction affecting left dominant side
- I69.311 — Dysphasia following cerebral infarction
- I69.321 — Dysarthria following cerebral infarction
- I69.398 — Other sequelae of cerebral infarction
- G81.90 — Hemiplegia, unspecified affecting unspecified side
- G82.50 — Paraplegia, unspecified
- G20 — Parkinson’s disease
- R26.0 — Ataxic gait
- G11.1 — Early-onset cerebellar ataxia
Cognitive and Developmental Disorders
- F84.0 — Autistic disorder
- F90.0 — Attention deficit disorder, inattentive type
- F88 — Other disorders of psychological development
- F82 — Specific developmental disorder of motor function
- F81.0 — Specific reading disorder
- F81.2 — Disorder of written expression
- F80.2 — Mixed receptive-expressive language disorder
- F70 — Mild intellectual disabilities
- R41.841 — Cognitive communication deficit
- R41.89 — Other symptoms and signs involving cognitive functions and awareness
Hand and Upper Extremity Rehabilitation
- M25.531 — Pain in right wrist
- M25.532 — Pain in left wrist
- M25.521 — Pain in right elbow
- M25.522 — Pain in left elbow
- S66.911A — Strain of unspecified muscle and tendon at wrist/hand level, right
- S66.921A — Strain of unspecified muscle and tendon at wrist/hand level, left
- M79.601 — Pain in right arm
- M79.602 — Pain in left arm
- M65.4 — Radial styloid tenosynovitis [de Quervain]
- M25.541 — Contracture of right hand joint
Pediatrics and Sensory Integration
- F84.0 — Autism spectrum disorder
- F80.0 — Phonological disorder
- F82 — Specific developmental disorder of motor function
- R63.3 — Feeding difficulties
- R62.50 — Unspecified lack of expected normal physiological development
- Z13.41 — Encounter for autism screening
- F90.1 — ADHD with hyperactivity
- F88 — Other disorders of psychological development
- Z13.4 — Encounter for screening for certain developmental disorders in childhood
- Z13.42 — Screening for global developmental delay
Visual-Perceptual and Sensory-Motor Impairments
- H54.7 — Unspecified visual loss
- R48.8 — Other symbolic dysfunctions
- R41.3 — Other amnesia
- R48.1 — Agnosia
- R48.0 — Dyslexia and alexia
- R48.2 — Apraxia
- R42 — Dizziness and giddiness
- Z13.5 — Encounter for screening for eye and vision problems
- Z13.850 — Screening for motor coordination problems
Post-Surgical Recovery and Adaptive Equipment
- Z47.89 — Orthopedic aftercare, other
- Z47.1 — Aftercare following joint replacement
- Z96.641 — Presence of right artificial hip joint
- Z96.612 — Presence of left artificial shoulder joint
- Z96.652 — Presence of left artificial knee joint
- Z48.81 — Aftercare following musculoskeletal surgery
- Z46.89 — Fitting and adjustment of other specified devices
- Z46.3 — Fitting and adjustment of orthopedic devices
- Z44.3 — Encounter for fitting and adjustment of external prosthetic limb
- Z95.0 — Presence of cardiac pacemaker
Arthritis and Rheumatologic Conditions
- M19.90 — Osteoarthritis, unspecified site
- M17.9 — Osteoarthritis of knee, unspecified
- M16.9 — Osteoarthritis of hip, unspecified
- M15.0 — Primary generalized osteoarthritis
- M06.9 — Rheumatoid arthritis, unspecified
- M79.1 — Myalgia
- M79.7 — Fibromyalgia
- M25.50 — Pain in unspecified joint
- M25.60 — Stiffness of joint, not elsewhere classified
Activities of Daily Living (ADL) and Instrumental Activities (IADL)
- Z74.09 — Other reduced mobility
- Z74.1 — Need for assistance with personal care
- R26.2 — Difficulty walking, not elsewhere classified
- R29.6 — Repeated falls
- Z91.81 — History of falling
- Z74.8 — Other problems related to care provider dependency
- Z74.3 — Need for continuous supervision
- Z59.7 — Insufficient social insurance and welfare support
- Z74.2 — Need for assistance at home and no other helper
Mental Health in OT Practice
- F32.9 — Major depressive disorder, single episode, unspecified
- F41.9 — Anxiety disorder, unspecified
- F43.10 — Post-traumatic stress disorder, unspecified
- F43.21 — Adjustment disorder with depressed mood
- F33.1 — Major depressive disorder, recurrent, moderate
- F60.3 — Borderline personality disorder
- F99 — Mental disorder, not otherwise specified
- Z63.8 — Other specified problems related to primary support group
- Z65.8 — Other specified problems related to psychosocial circumstances
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