M54.50 Low back pain, unspecified

Billable ICD-10-CM code, FY2026.

Applicable to

• Loin pain
• Lumbago NOS

Applies from M54 Dorsalgia

Excludes1 (never code together)

• psychogenic dorsalgia (F45.41)

Applies from M54.5 Low back pain

Excludes1 (never code together)

• intervertebral disc degeneration, lumbar region with discogenic back pain only (M51.360)
• intervertebral disc degeneration, lumbosacral region with discogenic back pain only (M51.370)
• low back strain (S39.012)
• lumbago due to intervertebral disc displacement (M51.2-)
• lumbago with sciatica (M54.4-)

MS-DRG index

Defines the logic of DRG(s) 551-552 in MDC 08.

Code annotations containing back-references to M54.50

Back-references to M54.5

• Type 2 Excludes: G89 Pain, not elsewhere classified ("lumbar region pain (M54.5-)")
• Type 1 Excludes: M54.8 Other dorsalgia ("low back pain (M54.5-)")
• Type 1 Excludes: R52 Pain, unspecified ("lumbar region pain (M54.5-)")

Back-references to M54

• Type 1 Excludes: G55 Nerve root and plexus compressions in diseases classified elsewhere ("nerve root compression (due to) (in) dorsopathies (M53.-, M54.-)")
• Type 2 Excludes: G89 Pain, not elsewhere classified ("spine pain (M54.-)")
• Type 2 Excludes: R10 Abdominal and pelvic pain ("dorsalgia (M54.-)")
• Type 1 Excludes: R52 Pain, unspecified ("spine pain (M54.-)")

Diagnosis Index entries for M54.50

• Low › back syndrome
• Lumbago, lumbalgia
• Pain (s) › loin
• Pain (s) › low back
• Pain (s) › lumbar region
• Pain (s) › spine › low back
• Syndrome › low › back

Nearby codes

• M54.4 Lumbago with sciatica
• M54.40 Lumbago with sciatica, unspecified side
• M54.41 Lumbago with sciatica, right side
• M54.42 Lumbago with sciatica, left side
• M54.5 Low back pain
• M54.50 Low back pain, unspecified (this code)
• M54.51 Vertebrogenic low back pain
• M54.59 Other low back pain
• M54.6 Pain in thoracic spine
• M54.8 Other dorsalgia
• M54.81 Occipital neuralgia