ICD 10 Coding Alert

Orthopedic Spotlight:

Check Out Updates for These Conditions

Know these updates to juvenile osteochrondosis and arthritis coding.

2021 ICD-10-CM changes relevant to orthopedic coding will go into effect Oct. 1, 2020. Use the next few weeks to become comfortable with the changes before you need to implement them in your coding.

What’s included? Look for three major revisions to juvenile osteochrondosis (JO) coding, an additional character for arthritis codes, and a fifth character — 9 — to some code sets.

Know These JO Changes

During her presentation “Juvenile Osteochondroses,” Nathalie Gaulier, MD, sports medicine physician at Cook Children’s Medical Center, defined the condition:

  • General term for disorders that affect one or more ossification centers in children.
  • Encompasses traction apophysitis and avascular necrosis.
  • Exact etiology unknown.
  • Radiographic picture show pattern of fragmentation, collapse, sclerosis and reossification.

According to Codify, JO “may cause a dull, nonspecific aching sensation in the joints of the affected area, especially upon application of pressure. Providers diagnose the condition based on personal history of symptoms, physical examination, and confirmation with X–ray. Treatment options are largely conservative, including rest for several days, followed if needed by application of a cast to restrict joint movement; rarely, surgical intervention may be required to remove abnormal bone fragments.”

Note How Revisions Add Detail to JO Dx

The first JO-related revision is M92.50 (Juvenile osteochondrosis of tibia and fibula, unspecified leg), whose descriptor will change to M92.50 (Unspecified juvenile osteochondrosis of tibia and fibula) in October. The M92.50- code set will also welcome these additions to its rolls:

  • M92.501 (Unspecified juvenile osteochondrosis, right leg)
  • M92.502 (Unspecified juvenile osteochondrosis, left leg)
  • M92.503 (Unspecified juvenile osteochondrosis, bilateral leg)
  • M92.509 (Unspecified juvenile osteochondrosis, unspecified leg)

The second revision is M92.51 (Juvenile osteochondrosis of tibia and fibula, right leg), whose descriptor will change to M92.51 (Juvenile osteochondrosis of proximal tibia) in October. The M92.51- codes will also get these additions in October:

  • M92.511 (Juvenile osteochondrosis of proximal tibia, right leg)
  • M92.512 (Juvenile osteochondrosis of proximal tibia, left leg)
  • M92.513 (Juvenile osteochondrosis of proximal tibia, bilateral)
  • M92.519 (Juvenile osteochondrosis of proximal tibia, unspecified leg)

The third revision is M92.52 (Juvenile osteochondrosis of tibia and fibula, left leg), whose descriptor will change to

  • M92.52 (Juvenile osteochondrosis of tibia tubercle) in October. Other codes that will premiere in the M92.52- set in October include:
  • M92.521 (Juvenile osteochondrosis of tibia tubercle, right leg)
  • M92.522 (Juvenile osteochondrosis of tibia tubercle, left leg)
  • M92.523 (Juvenile osteochondrosis of tibia tubercle, bilateral)
  • M92.529 (Juvenile osteochondrosis of tibia tubercle, unspecified leg)
  • M92.59 (Other juvenile osteochondrosis of tibia and fibula)
  • M92.591 (Other juvenile osteochondrosis of tibia and fibula, right leg)
  • M92.592 (Other juvenile osteochondrosis of tibia and fibula, left leg)
  • M92.593 (Other juvenile osteochondrosis of tibia and fibula, bilateral)
  • M92.599 (Other juvenile osteochondrosis of tibia and fibula, unspecified leg).

Use the ‘A’ Option for These Arthritis Codes

As for new diagnosis options for conditions relative specifically to orthopedics, ICD-10 is adding several codes with an “A” character to some of its sets in the Diseases of the musculoskeletal system and connective tissue (M00-M99) Chapter. For instance, M05.7 (Rheumatoid arthritis with rheumatoid factor without organ or systems involvement) will add M05.7A (Rheumatoid arthritis with rheumatoid factor of other specified site without organ or systems involvement) to give you another fifth-character option for this condition.

Also, M05.8 (Other rheumatoid arthritis with rheumatoid factor) will add M05.8A (Other rheumatoid arthritis with rheumatoid factor of other specified site).

Other new codes from this set for 2021 include:

  • M06.0A (Rheumatoid arthritis without rheumatoid factor, other specified site)
  • M06.8A (Other specified rheumatoid arthritis, other specified site)
  • M08.0A (Unspecified juvenile rheumatoid arthritis, other specified site)
  • M08.2A (Juvenile rheumatoid arthritis with systemic onset, other specified site)
  • M08.4A (Pauciarticular juvenile rheumatoid arthritis, other specified site)
  • M08.9A (Juvenile arthritis, unspecified, other specified site)

Don’t Miss ‘9’ in These Code Sets

Just as with the addition of new fifth characters with the aforementioned codes, ICD-10 will add the fifth-character option of “9” or “A” to several other code sets. For example, ICD-10 will add M19.09 (Primary osteoarthritis, other specified site) to the M19.0 (Primary osteoarthritis of other joints) code set in October. Also, M19.1 (Post-traumatic osteoarthritis of other joints) will add M19.19 (Post-traumatic osteoarthritis, other specified site).

Other new codes from this set for 2021 include:

  • M19.29 (Secondary osteoarthritis, other specified site)
  • M24.19 (Other articular cartilage disorders, other specified site)
  • M24.29 (Disorder of ligament, other specified site)
  • M24.39 (Pathological dislocation of other specified joint, not elsewhere classified)
  • M24.49 (Recurrent dislocation, other specified joint)
  • M24.59 (Contracture, other specified joint)
  • M24.69 (Ankylosis, other specified joint)
  • M24.89 (Other specific joint derangement of other specified joint, not elsewhere classified)
  • M25.39 (Other instability, other specified joint)
  • M25.59 (Pain in other specified joint)
  • M25.69 (Stiffness of other specified joint, not elsewhere classified)
  • M80.0A (Age-related osteoporosis with current pathological fracture, other site)
  • M80.8A (Other osteoporosis with current pathological fracture, other site).