Pregnancy related peripheral neuritis, third trimester

This code signifies inflammation or damage to peripheral nerves occurring specifically during the third trimester of pregnancy. It encompasses conditions like carpal tunnel syndrome, meralgia paresthetica, or other neuropathies directly attributed to the physiological changes of late pregnancy. The nerve involvement can lead to symptoms such as pain, numbness, tingling, or weakness in the affected areas.

Apply this code when a pregnant patient in their third trimester presents with symptoms of peripheral neuropathy, and the clinician explicitly links the condition to the pregnancy. Documentation should clearly state "pregnancy-related peripheral neuritis" or a similar phrase, along with the trimester. This code is appropriate for conditions like new-onset carpal tunnel syndrome or other nerve compression syndromes that develop or worsen in late pregnancy.

• Ensure the documentation specifies "third trimester" for accurate code assignment.
• Do not use this code for pre-existing neuropathies not exacerbated by pregnancy or for neuropathies unrelated to pregnancy.
• Consider an additional code for the specific type of peripheral neuritis (e.g., G56.0- for carpal tunnel syndrome) if documented, but sequence the O-code first as the primary reason for the encounter.