ICD-9-CM

13. DISEASES OF THE MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE (710-739)

Use additional external cause code, if applicable, to identify the cause of the musculoskeletal condition

The following fifth-digit subclassification is for use with categories 711-712, 715-716, 718-719, and 730:

0 site unspecified

1 shoulder region

Acromioclavicular joint(s)

Glenohumeral joint(s)

Sternoclavicular joint(s)

Clavicle

Scapula

2 upper arm

Elbow joint

Humerus

3 forearm

Radius

Ulna

Wrist joint

4 hand

Carpus

Metacarpus

Phalanges [fingers]

5 pelvic region and thigh

Buttock

Femur

Hip (joint)

6 lower leg

Fibula

Knee joint

Patella

Tibia

7 ankle and foot

Ankle joint

Digits [toes]

Metatarsus

Phalanges, foot

Tarsus

Other joints in foot

8 other specified sites

Head

Neck

Ribs

Skull

Trunk

Vertebral column

9 multiple sites

ARTHROPATHIES AND RELATED DISORDERS (710-719) Excludes: disorders of spine (720.0-724.9)
710: Diffuse diseases of connective tissue Includes: all collagen diseases whose effects are not mainly confined to a single system Excludes: those affecting mainly the cardiovascular system, i.e., polyarteritis nodosa and allied conditions (446.0-446.7)
711: Arthropathy associated with infections Includes: arthritis associated with conditions classifiable below arthropathy associated with conditions classifiable below polyarthritis associated with conditions classifiable below polyarthropathy associated with conditions classifiable below Excludes: rheumatic fever (390) The following fifth-digit subclassification is for use with category 711; valid digits are in [brackets] under each code. see list at beginning of chapter for definitions: 0 site unspecified 1 shoulder region 2 upper arm 3 forearm 4 hand 5 pelvic region and thigh 6 lower leg 7 ankle and foot 8 other specified sites 9 multiple sites
712: Crystal arthropathies Includes: crystal-induced arthritis and synovitis Excludes: gouty arthropathy (274.00-274.03) The following fifth-digit subclassification is for use with category 712; valid digits are in [brackets] under each code. see list at beginning of chapter for definitions: 0 site unspecified 1 shoulder region 2 upper arm 3 forearm 4 hand 5 pelvic region and thigh 6 lower leg 7 ankle and foot 8 other specified sites 9 multiple sites
713: Arthropathy associated with other disorders classified elsewhere Includes: arthritis associated with conditions classifiable below arthropathy associated with conditions classifiable below polyarthritis associated with conditions classifiable below polyarthropathy associated with conditions classifiable below
714: Rheumatoid arthritis and other inflammatory polyarthropathies Excludes: rheumatic fever (390) rheumatoid arthritis of spine NOS (720.0)
715: Osteoarthrosis and allied disorders Note: Localized, in the subcategories below, includes bilateral involvement of the same site. Includes: arthritis or polyarthritis: degenerative hypertrophic degenerative joint disease osteoarthritis Excludes: Marie-Strümpell spondylitis (720.0) osteoarthrosis [osteoarthritis] of spine (721.0-721.9) The following fifth-digit subclassification is for use with category 715; valid digits are in [brackets] under each code. see list at beginning of chapter for definitions: 0 site unspecified 1 shoulder region 2 upper arm 3 forearm 4 hand 5 pelvic region and thigh 6 lower leg 7 ankle and foot 8 other specified sites 9 multiple sites
716: Other and unspecified arthropathies Excludes: cricoarytenoid arthropathy (478.79) The following fifth-digit subclassification is for use with category 716; valid digits are in [brackets] under each code. see list at beginning of chapter for definitions: 0 site unspecified 1 shoulder region 2 upper arm 3 forearm 4 hand 5 pelvic region and thigh 6 lower leg 7 ankle and foot 8 other specified sites 9 multiple sites
717: Internal derangement of knee Includes: degeneration of articular cartilage or meniscus of knee rupture, old of articular cartilage or meniscus of knee tear, old of articular cartilage or meniscus of knee Excludes: acute derangement of knee (836.0-836.6) ankylosis (718.5) contracture (718.4) current injury (836.0-836.6) deformity (736.4-736.6) recurrent dislocation (718.3)
718: Other derangement of joint Excludes: current injury (830.0-848.9) jaw (524.60-524.69) The following fifth-digit subclassification is for use with category 718; valid digits are in [brackets] under each code. see list at beginning of chapter for definitions: 0 site unspecified 1 shoulder region 2 upper arm 3 forearm 4 hand 5 pelvic region and thigh 6 lower leg 7 ankle and foot 8 other specified sites 9 multiple sites
719: Other and unspecified disorders of joint Excludes: jaw (524.60-524.69) The following fifth-digit subclassification is for use with codes 719.0-719.6, 719.8-719.9; valid digits are in [brackets] under each code. see list at beginning of chapter for definitions: 0 site unspecified 1 shoulder region 2 upper arm 3 forearm 4 hand 5 pelvic region and thigh 6 lower leg 7 ankle and foot 8 other specified sites 9 multiple sites

ARTHROPATHIES AND RELATED DISORDERS (710-719)

Excludes:

disorders of spine (720.0-724.9)

710: Diffuse diseases of connective tissue

Includes:

all collagen diseases whose effects are not mainly confined to a single system

Excludes:

those affecting mainly the cardiovascular system, i.e., polyarteritis nodosa and allied conditions (446.0-446.7)

711: Arthropathy associated with infections

Includes:

arthritis associated with conditions classifiable below

arthropathy associated with conditions classifiable below

polyarthritis associated with conditions classifiable below

polyarthropathy associated with conditions classifiable below

Excludes:

rheumatic fever (390)

The following fifth-digit subclassification is for use with category 711; valid digits are in [brackets] under each code. see list at beginning of chapter for definitions:

0 site unspecified

1 shoulder region

2 upper arm

3 forearm

4 hand

5 pelvic region and thigh

6 lower leg

7 ankle and foot

8 other specified sites

9 multiple sites

712: Crystal arthropathies

Includes:

crystal-induced arthritis and synovitis

Excludes:

gouty arthropathy (274.00-274.03)

The following fifth-digit subclassification is for use with category 712; valid digits are in [brackets] under each code. see list at beginning of chapter for definitions:

0 site unspecified

1 shoulder region

2 upper arm

3 forearm

4 hand

5 pelvic region and thigh

6 lower leg

7 ankle and foot

8 other specified sites

9 multiple sites

713: Arthropathy associated with other disorders classified elsewhere

Includes:

arthritis associated with conditions classifiable below

arthropathy associated with conditions classifiable below

polyarthritis associated with conditions classifiable below

polyarthropathy associated with conditions classifiable below

714: Rheumatoid arthritis and other inflammatory polyarthropathies

Excludes:

rheumatic fever (390)

rheumatoid arthritis of spine NOS (720.0)

715: Osteoarthrosis and allied disorders

Note:

Localized, in the subcategories below, includes bilateral involvement of the same site.

Includes:

arthritis or polyarthritis:

degenerative

hypertrophic

degenerative joint disease

osteoarthritis

Excludes:

Marie-Strümpell spondylitis (720.0)

osteoarthrosis [osteoarthritis] of spine (721.0-721.9)

The following fifth-digit subclassification is for use with category 715; valid digits are in [brackets] under each code. see list at beginning of chapter for definitions:

0 site unspecified

1 shoulder region

2 upper arm

3 forearm

4 hand

5 pelvic region and thigh

6 lower leg

7 ankle and foot

8 other specified sites

9 multiple sites

716: Other and unspecified arthropathies

Excludes:

cricoarytenoid arthropathy (478.79)

The following fifth-digit subclassification is for use with category 716; valid digits are in [brackets] under each code. see list at beginning of chapter for definitions:

0 site unspecified

1 shoulder region

2 upper arm

3 forearm

4 hand

5 pelvic region and thigh

6 lower leg

7 ankle and foot

8 other specified sites

9 multiple sites

717: Internal derangement of knee

Includes:

degeneration of articular cartilage or meniscus of knee

rupture, old of articular cartilage or meniscus of knee

tear, old of articular cartilage or meniscus of knee

Excludes:

acute derangement of knee (836.0-836.6)

ankylosis (718.5)

contracture (718.4)

current injury (836.0-836.6)

deformity (736.4-736.6)

recurrent dislocation (718.3)

718: Other derangement of joint

Excludes:

current injury (830.0-848.9)

jaw (524.60-524.69)

The following fifth-digit subclassification is for use with category 718; valid digits are in [brackets] under each code. see list at beginning of chapter for definitions:

0 site unspecified

1 shoulder region

2 upper arm

3 forearm

4 hand

5 pelvic region and thigh

6 lower leg

7 ankle and foot

8 other specified sites

9 multiple sites

719: Other and unspecified disorders of joint

Excludes:

jaw (524.60-524.69)

The following fifth-digit subclassification is for use with codes 719.0-719.6, 719.8-719.9; valid digits are in [brackets] under each code. see list at beginning of chapter for definitions:

0 site unspecified

1 shoulder region

2 upper arm

3 forearm

4 hand

5 pelvic region and thigh

6 lower leg

7 ankle and foot

8 other specified sites

9 multiple sites

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