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2009 ICD-9-CM
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712 Crystal arthropathies
Includes: crystal-induced arthritis and synovitis
Excludes: gouty arthropathy (274.0)
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 | |
 | 712.1 Chondrocalcinosis due to dicalcium phosphate crystals
[0-9]
Chondrocalcinosis due to dicalcium phosphate crystals (with other crystals)
Code first underlying disease (275.49) |
| 712.2 Chondrocalcinosis due to pyrophosphate crystals
[0-9]
Code first underlying disease (275.49) |
| 712.3 Chondrocalcinosis, unspecified
[0-9]
Code first underlying disease (275.49) |
| 712.8 Other specified crystal arthropathies
[0-9] |
| 712.9 Unspecified crystal arthropathy
[0-9] |