ICD-10 · PDGM grouping

M50-M54 — Other dorsopathies

Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.1.26.

OASIS-E2 v1.00.0 · ingested 2026-04-26

Codes in range

133

No clinical group

A period cannot be grouped from these.

Barred as primary

CMS rejects these in the primary position.

Where these codes group

109 of the 133 codes in M50-M54 group to Musculoskeletal Rehabilitation. A further 24 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.

EMusculoskeletal Rehabilitation109

Every code in M50-M54

Descriptions are CMS’s own, abbreviated as CMS abbreviates them.

Code	Description	Clinical group	Primary position
M5000	Cervical disc disorder with myelopathy, unsp cervical region	None	Too unspecified
M5001	Cervical disc disorder with myelopathy, high cervical region	E	Accepted
M50020	Cerv disc disord with myelpath, mid-cervical rgn, unsp level	None	Too unspecified
M50021	Cervical disc disorder at C4-C5 level with myelopathy	E	Accepted
M50022	Cervical disc disorder at C5-C6 level with myelopathy	E	Accepted
M50023	Cervical disc disorder at C6-C7 level with myelopathy	E	Accepted
M5003	Cervical disc disorder w myelopathy, cervicothoracic region	E	Accepted
M5010	Cervical disc disorder w radiculopathy, unsp cervical region	None	Cannot group
M5011	Cerv disc disorder with radiculopathy, high cervical region	E	Accepted
M50120	Mid-cervical disc disorder, unspecified level	None	Cannot group
M50121	Cervical disc disorder at C4-C5 level with radiculopathy	E	Accepted
M50122	Cervical disc disorder at C5-C6 level with radiculopathy	E	Accepted
M50123	Cervical disc disorder at C6-C7 level with radiculopathy	E	Accepted
M5013	Cervical disc disorder w radiculopathy, cervicothor region	E	Accepted
M5020	Other cervical disc displacement, unsp cervical region	None	Cannot group
M5021	Other cervical disc displacement, high cervical region	E	Accepted
M50220	Other cerv disc displacmnt, mid-cervical region, unsp level	None	Cannot group
M50221	Other cervical disc displacement at C4-C5 level	E	Accepted
M50222	Other cervical disc displacement at C5-C6 level	E	Accepted
M50223	Other cervical disc displacement at C6-C7 level	E	Accepted
M5023	Other cervical disc displacement, cervicothoracic region	E	Accepted
M5030	Other cervical disc degeneration, unsp cervical region	None	Cannot group
M5031	Other cervical disc degeneration, high cervical region	E	Accepted
M50320	Other cerv disc degeneration, mid-cervical rgn, unsp level	None	Cannot group
M50321	Other cervical disc degeneration at C4-C5 level	E	Accepted
M50322	Other cervical disc degeneration at C5-C6 level	E	Accepted
M50323	Other cervical disc degeneration at C6-C7 level	E	Accepted
M5033	Other cervical disc degeneration, cervicothoracic region	E	Accepted
M5080	Other cervical disc disorders, unspecified cervical region	None	Cannot group
M5081	Other cervical disc disorders, high cervical region	E	Accepted
M50820	Other cervical disc disord, mid-cervical region, unsp level	None	Cannot group
M50821	Other cervical disc disorders at C4-C5 level	E	Accepted
M50822	Other cervical disc disorders at C5-C6 level	E	Accepted
M50823	Other cervical disc disorders at C6-C7 level	E	Accepted
M5083	Other cervical disc disorders, cervicothoracic region	E	Accepted
M5090	Cervical disc disorder, unsp, unspecified cervical region	None	Cannot group
M5091	Cervical disc disorder, unspecified, high cervical region	E	Accepted
M50920	Unsp cervical disc disorder, mid-cervical region, unsp level	None	Cannot group
M50921	Unspecified cervical disc disorder at C4-C5 level	E	Accepted
M50922	Unspecified cervical disc disorder at C5-C6 level	E	Accepted
M50923	Unspecified cervical disc disorder at C6-C7 level	E	Accepted
M5093	Cervical disc disorder, unspecified, cervicothoracic region	E	Accepted
M5104	Intervertebral disc disorders w myelopathy, thoracic region	E	Accepted
M5105	Intvrt disc disorders w myelopathy, thoracolumbar region	E	Accepted
M5106	Intervertebral disc disorders with myelopathy, lumbar region	E	Accepted
M5114	Intvrt disc disorders w radiculopathy, thoracic region	E	Accepted
M5115	Intvrt disc disorders w radiculopathy, thoracolumbar region	E	Accepted
M5116	Intervertebral disc disorders w radiculopathy, lumbar region	E	Accepted
M5117	Intvrt disc disorders w radiculopathy, lumbosacral region	E	Accepted
M5124	Other intervertebral disc displacement, thoracic region	E	Accepted
M5125	Other intervertebral disc displacement, thoracolumbar region	E	Accepted
M5126	Other intervertebral disc displacement, lumbar region	E	Accepted
M5127	Other intervertebral disc displacement, lumbosacral region	E	Accepted
M5134	Other intervertebral disc degeneration, thoracic region	E	Accepted
M5135	Other intervertebral disc degeneration, thoracolumbar region	E	Accepted
M51360	Other intvrt disc degen, lum rgn with discog back pain only	E	Accepted
M51361	Other intvrt disc degen, lum region with low extrm pain only	E	Accepted
M51362	Oth intvrt disc degen, lum rgn w discog bck & lw extrm pain	E	Accepted
M51369	Oth intvrt disc degen, lum rgn w/o lum bck or lw extrm pain	E	Accepted
M51370	Oth intvrt disc degen, lumbosacr rgn w discog bck pain only	E	Accepted
M51371	Oth intvrt disc degen, lumbosacr rgn w low extrm pain only	E	Accepted
M51372	Oth intvrt disc degen, lumbosacr w discog bck & lw extrm pn	E	Accepted
M51379	Oth intvrt disc degen, lumbosacr w/o lum bck or lw extrm pn	E	Accepted
M5144	Schmorl's nodes, thoracic region	E	Accepted
M5145	Schmorl's nodes, thoracolumbar region	E	Accepted
M5146	Schmorl's nodes, lumbar region	E	Accepted
M5147	Schmorl's nodes, lumbosacral region	E	Accepted
M5184	Other intervertebral disc disorders, thoracic region	E	Accepted
M5185	Other intervertebral disc disorders, thoracolumbar region	E	Accepted
M5186	Other intervertebral disc disorders, lumbar region	E	Accepted
M5187	Other intervertebral disc disorders, lumbosacral region	E	Accepted
M519	Unsp thoracic, thoracolum and lumbosacr intvrt disc disorder	E	Accepted
M51A0	Intvrt annulus fibrosus defect, lumbar region, unsp size	E	Accepted
M51A1	Intervertebral annulus fibrosus defect, small, lumbar region	E	Accepted
M51A2	Intervertebral annulus fibrosus defect, large, lumbar region	E	Accepted
M51A3	Intvrt annulus fibrosus defect, lumbosacr region, unsp size	E	Accepted
M51A4	Intvrt annulus fibrosus defect, small, lumbosacral region	E	Accepted
M51A5	Intvrt annulus fibrosus defect, large, lumbosacral region	E	Accepted
M530	Cervicocranial syndrome	E	Accepted
M531	Cervicobrachial syndrome	E	Accepted
M532X1	Spinal instabilities, occipito-atlanto-axial region	E	Accepted
M532X2	Spinal instabilities, cervical region	E	Accepted
M532X3	Spinal instabilities, cervicothoracic region	E	Accepted
M532X4	Spinal instabilities, thoracic region	E	Accepted
M532X5	Spinal instabilities, thoracolumbar region	E	Accepted
M532X6	Spinal instabilities, lumbar region	E	Accepted
M532X7	Spinal instabilities, lumbosacral region	E	Accepted
M532X8	Spinal instabilities, sacral and sacrococcygeal region	E	Accepted
M532X9	Spinal instabilities, site unspecified	None	Cannot group
M533	Sacrococcygeal disorders, not elsewhere classified	E	Accepted
M5380	Other specified dorsopathies, site unspecified	None	Cannot group
M5381	Other specified dorsopathies, occipito-atlanto-axial region	E	Accepted
M5382	Other specified dorsopathies, cervical region	E	Accepted
M5383	Other specified dorsopathies, cervicothoracic region	E	Accepted
M5384	Other specified dorsopathies, thoracic region	E	Accepted
M5385	Other specified dorsopathies, thoracolumbar region	E	Accepted
M5386	Other specified dorsopathies, lumbar region	E	Accepted
M5387	Other specified dorsopathies, lumbosacral region	E	Accepted
M5388	Oth dorsopathies, sacral and sacrococcygeal region	E	Accepted
M539	Dorsopathy, unspecified	None	Cannot group
M5400	Panniculitis affecting regions of neck and back, site unsp	None	Cannot group
M5401	Panniculitis aff regions of neck/bk, occipt-atlan-ax region	E	Accepted
M5402	Panniculitis affecting regions of neck/bk, cervical region	E	Accepted
M5403	Panniculitis aff regions of neck/bk, cervicothor region	E	Accepted
M5404	Panniculitis affecting regions of neck/bk, thoracic region	E	Accepted
M5405	Panniculitis affecting regions of neck/bk, thoracolum region	E	Accepted
M5406	Panniculitis affecting regions of neck/bk, lumbar region	E	Accepted
M5407	Panniculitis affecting regions of neck/bk, lumbosacr region	E	Accepted
M5408	Panniculitis aff regions of neck/bk, sacr/sacrocygl region	E	Accepted
M5409	Panniculitis aff regions, neck/bk, multiple sites in spine	E	Accepted
M5410	Radiculopathy, site unspecified	None	Cannot group
M5411	Radiculopathy, occipito-atlanto-axial region	E	Accepted
M5412	Radiculopathy, cervical region	E	Accepted
M5413	Radiculopathy, cervicothoracic region	E	Accepted
M5414	Radiculopathy, thoracic region	E	Accepted
M5415	Radiculopathy, thoracolumbar region	E	Accepted
M5416	Radiculopathy, lumbar region	E	Accepted
M5417	Radiculopathy, lumbosacral region	E	Accepted
M5418	Radiculopathy, sacral and sacrococcygeal region	E	Accepted
M542	Cervicalgia	E	Accepted
M5430	Sciatica, unspecified side	None	Cannot group
M5431	Sciatica, right side	E	Accepted
M5432	Sciatica, left side	E	Accepted
M5440	Lumbago with sciatica, unspecified side	None	Cannot group
M5441	Lumbago with sciatica, right side	E	Accepted
M5442	Lumbago with sciatica, left side	E	Accepted
M5450	Low back pain, unspecified	None	Cannot group
M5451	Vertebrogenic low back pain	None	Cannot group
M5459	Other low back pain	None	Cannot group
M546	Pain in thoracic spine	None	Cannot group
M5481	Occipital neuralgia	E	Accepted
M5489	Other dorsalgia	E	Accepted
M549	Dorsalgia, unspecified	None	Cannot group

Source: CMS HH PPS Grouper Software v07.1.26, effective 2026-04-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.

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M50-M54 — Other dorsopathies

Where these codes group

Every code in M50-M54

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